245017890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 144

約数和(自身を含む): 701424360

約数和(自身を除く): 456406470

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 89, 90, 117, 130, 169, 178, 181, 195, 234, 267, 338, 362, 390, 445, 507, 534, 543, 585, 801, 845, 890, 905, 1014, 1086, 1157, 1170, 1335, 1521, 1602, 1629, 1690, 1810, 2314, 2353, 2535, 2670, 2715, 3042, 3258, 3471, 4005, 4706, 5070, 5430, 5785, 6942, 7059, 7605, 8010, 8145, 10413, 11570, 11765, 14118, 15041, 15210, 16109, 16290, 17355, 20826, 21177, 23530, 30082, 30589, 32218, 34710, 35295, 42354, 45123, 48327, 52065, 61178, 70590, 75205, 80545, 90246, 91767, 96654, 104130, 105885, 135369, 144981, 150410, 152945, 161090, 183534, 209417, 211770, 225615, 241635, 270738, 275301, 289962, 305890, 418834, 451230, 458835, 483270, 550602, 628251, 676845, 724905, 917670, 1047085, 1256502, 1353690, 1376505, 1449810, 1884753, 2094170, 2722421, 2753010, 3141255, 3769506, 5444842, 6282510, 8167263, 9423765, 13612105, 16334526, 18847530, 24501789, 27224210, 40836315, 49003578, 81672630, 122508945, 245017890]

約数ペア:

[(1, 245017890), (2, 122508945), (3, 81672630), (5, 49003578), (6, 40836315), (9, 27224210), (10, 24501789), (13, 18847530), (15, 16334526), (18, 13612105), (26, 9423765), (30, 8167263), (39, 6282510), (45, 5444842), (65, 3769506), (78, 3141255), (89, 2753010), (90, 2722421), (117, 2094170), (130, 1884753), (169, 1449810), (178, 1376505), (181, 1353690), (195, 1256502), (234, 1047085), (267, 917670), (338, 724905), (362, 676845), (390, 628251), (445, 550602), (507, 483270), (534, 458835), (543, 451230), (585, 418834), (801, 305890), (845, 289962), (890, 275301), (905, 270738), (1014, 241635), (1086, 225615), (1157, 211770), (1170, 209417), (1335, 183534), (1521, 161090), (1602, 152945), (1629, 150410), (1690, 144981), (1810, 135369), (2314, 105885), (2353, 104130), (2535, 96654), (2670, 91767), (2715, 90246), (3042, 80545), (3258, 75205), (3471, 70590), (4005, 61178), (4706, 52065), (5070, 48327), (5430, 45123), (5785, 42354), (6942, 35295), (7059, 34710), (7605, 32218), (8010, 30589), (8145, 30082), (10413, 23530), (11570, 21177), (11765, 20826), (14118, 17355), (15041, 16290), (15210, 16109)]