81437310

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:179

約数の個数: 144

約数和(自身を含む): 234479232

約数和(自身を除く): 153041922

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 31, 34, 45, 51, 62, 85, 90, 93, 101, 102, 153, 155, 170, 186, 202, 255, 279, 289, 303, 306, 310, 465, 505, 510, 527, 558, 578, 606, 765, 867, 909, 930, 1010, 1054, 1395, 1445, 1515, 1530, 1581, 1717, 1734, 1818, 2601, 2635, 2790, 2890, 3030, 3131, 3162, 3434, 4335, 4545, 4743, 5151, 5202, 5270, 6262, 7905, 8585, 8670, 8959, 9090, 9393, 9486, 10302, 13005, 15453, 15655, 15810, 17170, 17918, 18786, 23715, 25755, 26010, 26877, 28179, 29189, 30906, 31310, 44795, 46965, 47430, 51510, 53227, 53754, 56358, 58378, 77265, 80631, 87567, 89590, 93930, 106454, 134385, 140895, 145945, 154530, 159681, 161262, 175134, 262701, 266135, 268770, 281790, 291890, 319362, 403155, 437835, 479043, 525402, 532270, 798405, 806310, 875670, 904859, 958086, 1313505, 1596810, 1809718, 2395215, 2627010, 2714577, 4524295, 4790430, 5429154, 8143731, 9048590, 13572885, 16287462, 27145770, 40718655, 81437310]

約数ペア:

[(1, 81437310), (2, 40718655), (3, 27145770), (5, 16287462), (6, 13572885), (9, 9048590), (10, 8143731), (15, 5429154), (17, 4790430), (18, 4524295), (30, 2714577), (31, 2627010), (34, 2395215), (45, 1809718), (51, 1596810), (62, 1313505), (85, 958086), (90, 904859), (93, 875670), (101, 806310), (102, 798405), (153, 532270), (155, 525402), (170, 479043), (186, 437835), (202, 403155), (255, 319362), (279, 291890), (289, 281790), (303, 268770), (306, 266135), (310, 262701), (465, 175134), (505, 161262), (510, 159681), (527, 154530), (558, 145945), (578, 140895), (606, 134385), (765, 106454), (867, 93930), (909, 89590), (930, 87567), (1010, 80631), (1054, 77265), (1395, 58378), (1445, 56358), (1515, 53754), (1530, 53227), (1581, 51510), (1717, 47430), (1734, 46965), (1818, 44795), (2601, 31310), (2635, 30906), (2790, 29189), (2890, 28179), (3030, 26877), (3131, 26010), (3162, 25755), (3434, 23715), (4335, 18786), (4545, 17918), (4743, 17170), (5151, 15810), (5202, 15655), (5270, 15453), (6262, 13005), (7905, 10302), (8585, 9486), (8670, 9393), (8959, 9090)]