644499180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^2$

素因数の和:239

約数の個数: 216

約数和(自身を含む): 2205171696

約数和(自身を除く): 1560672516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 101, 108, 117, 130, 135, 156, 162, 180, 195, 202, 234, 243, 260, 270, 303, 324, 351, 390, 404, 405, 468, 486, 505, 540, 585, 606, 702, 780, 810, 909, 972, 1010, 1053, 1170, 1212, 1215, 1313, 1404, 1515, 1620, 1755, 1818, 2020, 2106, 2340, 2430, 2626, 2727, 3030, 3159, 3510, 3636, 3939, 4212, 4545, 4860, 5252, 5265, 5454, 6060, 6318, 6565, 7020, 7878, 8181, 9090, 10201, 10530, 10908, 11817, 12636, 13130, 13635, 15756, 15795, 16362, 18180, 19695, 20402, 21060, 23634, 24543, 26260, 27270, 30603, 31590, 32724, 35451, 39390, 40804, 40905, 47268, 49086, 51005, 54540, 59085, 61206, 63180, 70902, 78780, 81810, 91809, 98172, 102010, 106353, 118170, 122412, 122715, 132613, 141804, 153015, 163620, 177255, 183618, 204020, 212706, 236340, 245430, 265226, 275427, 306030, 319059, 354510, 367236, 397839, 425412, 459045, 490860, 530452, 531765, 550854, 612060, 638118, 663065, 709020, 795678, 826281, 918090, 1063530, 1101708, 1193517, 1276236, 1326130, 1377135, 1591356, 1595295, 1652562, 1836180, 1989195, 2127060, 2387034, 2478843, 2652260, 2754270, 3190590, 3305124, 3580551, 3978390, 4131405, 4774068, 4957686, 5508540, 5967585, 6381180, 7161102, 7956780, 8262810, 9915372, 10741653, 11935170, 12394215, 14322204, 16525620, 17902755, 21483306, 23870340, 24788430, 32224959, 35805510, 42966612, 49576860, 53708265, 64449918, 71611020, 107416530, 128899836, 161124795, 214833060, 322249590, 644499180]

約数ペア:

[(1, 644499180), (2, 322249590), (3, 214833060), (4, 161124795), (5, 128899836), (6, 107416530), (9, 71611020), (10, 64449918), (12, 53708265), (13, 49576860), (15, 42966612), (18, 35805510), (20, 32224959), (26, 24788430), (27, 23870340), (30, 21483306), (36, 17902755), (39, 16525620), (45, 14322204), (52, 12394215), (54, 11935170), (60, 10741653), (65, 9915372), (78, 8262810), (81, 7956780), (90, 7161102), (101, 6381180), (108, 5967585), (117, 5508540), (130, 4957686), (135, 4774068), (156, 4131405), (162, 3978390), (180, 3580551), (195, 3305124), (202, 3190590), (234, 2754270), (243, 2652260), (260, 2478843), (270, 2387034), (303, 2127060), (324, 1989195), (351, 1836180), (390, 1652562), (404, 1595295), (405, 1591356), (468, 1377135), (486, 1326130), (505, 1276236), (540, 1193517), (585, 1101708), (606, 1063530), (702, 918090), (780, 826281), (810, 795678), (909, 709020), (972, 663065), (1010, 638118), (1053, 612060), (1170, 550854), (1212, 531765), (1215, 530452), (1313, 490860), (1404, 459045), (1515, 425412), (1620, 397839), (1755, 367236), (1818, 354510), (2020, 319059), (2106, 306030), (2340, 275427), (2430, 265226), (2626, 245430), (2727, 236340), (3030, 212706), (3159, 204020), (3510, 183618), (3636, 177255), (3939, 163620), (4212, 153015), (4545, 141804), (4860, 132613), (5252, 122715), (5265, 122412), (5454, 118170), (6060, 106353), (6318, 102010), (6565, 98172), (7020, 91809), (7878, 81810), (8181, 78780), (9090, 70902), (10201, 63180), (10530, 61206), (10908, 59085), (11817, 54540), (12636, 51005), (13130, 49086), (13635, 47268), (15756, 40905), (15795, 40804), (16362, 39390), (18180, 35451), (19695, 32724), (20402, 31590), (21060, 30603), (23634, 27270), (24543, 26260)]