28401420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 82736640

約数和(自身を除く): 54335220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 71, 113, 118, 142, 177, 213, 226, 236, 284, 295, 339, 354, 355, 426, 452, 565, 590, 678, 708, 710, 852, 885, 1065, 1130, 1180, 1356, 1420, 1695, 1770, 2130, 2260, 3390, 3540, 4189, 4260, 6667, 6780, 8023, 8378, 12567, 13334, 16046, 16756, 20001, 20945, 24069, 25134, 26668, 32092, 33335, 40002, 40115, 41890, 48138, 50268, 62835, 66670, 80004, 80230, 83780, 96276, 100005, 120345, 125670, 133340, 160460, 200010, 240690, 251340, 400020, 473357, 481380, 946714, 1420071, 1893428, 2366785, 2840142, 4733570, 5680284, 7100355, 9467140, 14200710, 28401420]

約数ペア:

[(1, 28401420), (2, 14200710), (3, 9467140), (4, 7100355), (5, 5680284), (6, 4733570), (10, 2840142), (12, 2366785), (15, 1893428), (20, 1420071), (30, 946714), (59, 481380), (60, 473357), (71, 400020), (113, 251340), (118, 240690), (142, 200010), (177, 160460), (213, 133340), (226, 125670), (236, 120345), (284, 100005), (295, 96276), (339, 83780), (354, 80230), (355, 80004), (426, 66670), (452, 62835), (565, 50268), (590, 48138), (678, 41890), (708, 40115), (710, 40002), (852, 33335), (885, 32092), (1065, 26668), (1130, 25134), (1180, 24069), (1356, 20945), (1420, 20001), (1695, 16756), (1770, 16046), (2130, 13334), (2260, 12567), (3390, 8378), (3540, 8023), (4189, 6780), (4260, 6667)]