28978650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:996

約数の個数: 72

約数和(自身を含む): 79039584

約数和(自身を除く): 50060934

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 639, 710, 907, 1065, 1278, 1775, 1814, 2130, 2721, 3195, 3550, 4535, 5325, 5442, 6390, 8163, 9070, 10650, 13605, 15975, 16326, 22675, 27210, 31950, 40815, 45350, 64397, 68025, 81630, 128794, 136050, 193191, 204075, 321985, 386382, 408150, 579573, 643970, 965955, 1159146, 1609925, 1931910, 2897865, 3219850, 4829775, 5795730, 9659550, 14489325, 28978650]

約数ペア:

[(1, 28978650), (2, 14489325), (3, 9659550), (5, 5795730), (6, 4829775), (9, 3219850), (10, 2897865), (15, 1931910), (18, 1609925), (25, 1159146), (30, 965955), (45, 643970), (50, 579573), (71, 408150), (75, 386382), (90, 321985), (142, 204075), (150, 193191), (213, 136050), (225, 128794), (355, 81630), (426, 68025), (450, 64397), (639, 45350), (710, 40815), (907, 31950), (1065, 27210), (1278, 22675), (1775, 16326), (1814, 15975), (2130, 13605), (2721, 10650), (3195, 9070), (3550, 8163), (4535, 6390), (5325, 5442)]