728173005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{953}}^1$

素因数の和:1370

約数の個数: 64

約数和(自身を含む): 1406730240

約数和(自身を除く): 678557235

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 383, 399, 665, 953, 1149, 1915, 1995, 2681, 2859, 4765, 5745, 6671, 7277, 8043, 13405, 14295, 18107, 20013, 21831, 33355, 36385, 40215, 50939, 54321, 90535, 100065, 109155, 126749, 152817, 254695, 271605, 364999, 380247, 633745, 764085, 1094997, 1824995, 1901235, 2554993, 5474985, 6934981, 7664979, 12774965, 20804943, 34674905, 38324895, 48544867, 104024715, 145634601, 242724335, 728173005]

約数ペア:

[(1, 728173005), (3, 242724335), (5, 145634601), (7, 104024715), (15, 48544867), (19, 38324895), (21, 34674905), (35, 20804943), (57, 12774965), (95, 7664979), (105, 6934981), (133, 5474985), (285, 2554993), (383, 1901235), (399, 1824995), (665, 1094997), (953, 764085), (1149, 633745), (1915, 380247), (1995, 364999), (2681, 271605), (2859, 254695), (4765, 152817), (5745, 126749), (6671, 109155), (7277, 100065), (8043, 90535), (13405, 54321), (14295, 50939), (18107, 40215), (20013, 36385), (21831, 33355)]