64609880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{563}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 154310400

約数和(自身を除く): 89700520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 151, 152, 190, 302, 380, 563, 604, 755, 760, 1126, 1208, 1510, 2252, 2815, 2869, 3020, 4504, 5630, 5738, 6040, 10697, 11260, 11476, 14345, 21394, 22520, 22952, 28690, 42788, 53485, 57380, 85013, 85576, 106970, 114760, 170026, 213940, 340052, 425065, 427880, 680104, 850130, 1615247, 1700260, 3230494, 3400520, 6460988, 8076235, 12921976, 16152470, 32304940, 64609880]

約数ペア:

[(1, 64609880), (2, 32304940), (4, 16152470), (5, 12921976), (8, 8076235), (10, 6460988), (19, 3400520), (20, 3230494), (38, 1700260), (40, 1615247), (76, 850130), (95, 680104), (151, 427880), (152, 425065), (190, 340052), (302, 213940), (380, 170026), (563, 114760), (604, 106970), (755, 85576), (760, 85013), (1126, 57380), (1208, 53485), (1510, 42788), (2252, 28690), (2815, 22952), (2869, 22520), (3020, 21394), (4504, 14345), (5630, 11476), (5738, 11260), (6040, 10697)]