379918640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{499}}^1$

素因数の和:850

約数の個数: 80

約数和(自身を含む): 916608000

約数和(自身を除く): 536689360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 307, 310, 496, 499, 614, 620, 998, 1228, 1240, 1535, 1996, 2456, 2480, 2495, 3070, 3992, 4912, 4990, 6140, 7984, 9517, 9980, 12280, 15469, 19034, 19960, 24560, 30938, 38068, 39920, 47585, 61876, 76136, 77345, 95170, 123752, 152272, 153193, 154690, 190340, 247504, 306386, 309380, 380680, 612772, 618760, 761360, 765965, 1225544, 1237520, 1531930, 2451088, 3063860, 4748983, 6127720, 9497966, 12255440, 18995932, 23744915, 37991864, 47489830, 75983728, 94979660, 189959320, 379918640]

約数ペア:

[(1, 379918640), (2, 189959320), (4, 94979660), (5, 75983728), (8, 47489830), (10, 37991864), (16, 23744915), (20, 18995932), (31, 12255440), (40, 9497966), (62, 6127720), (80, 4748983), (124, 3063860), (155, 2451088), (248, 1531930), (307, 1237520), (310, 1225544), (496, 765965), (499, 761360), (614, 618760), (620, 612772), (998, 380680), (1228, 309380), (1240, 306386), (1535, 247504), (1996, 190340), (2456, 154690), (2480, 153193), (2495, 152272), (3070, 123752), (3992, 95170), (4912, 77345), (4990, 76136), (6140, 61876), (7984, 47585), (9517, 39920), (9980, 38068), (12280, 30938), (15469, 24560), (19034, 19960)]