7900990780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1\times {\mathrm{631}}^1$

素因数の和:1139

約数の個数: 96

約数和(自身を含む): 17748380160

約数和(自身を除く): 9847389380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 397, 415, 631, 794, 830, 1262, 1577, 1588, 1660, 1985, 2524, 3154, 3155, 3970, 6308, 6310, 7543, 7885, 7940, 11989, 12620, 15086, 15770, 23978, 30172, 31540, 32951, 37715, 47956, 52373, 59945, 65902, 75430, 104746, 119890, 131804, 150860, 164755, 209492, 239780, 250507, 261865, 329510, 501014, 523730, 626069, 659020, 995087, 1002028, 1047460, 1252138, 1252535, 1990174, 2504276, 2505070, 3130345, 3980348, 4759633, 4975435, 5010140, 6260690, 9519266, 9950870, 12521380, 19038532, 19901740, 20792081, 23798165, 41584162, 47596330, 83168324, 95192660, 103960405, 207920810, 395049539, 415841620, 790099078, 1580198156, 1975247695, 3950495390, 7900990780]

約数ペア:

[(1, 7900990780), (2, 3950495390), (4, 1975247695), (5, 1580198156), (10, 790099078), (19, 415841620), (20, 395049539), (38, 207920810), (76, 103960405), (83, 95192660), (95, 83168324), (166, 47596330), (190, 41584162), (332, 23798165), (380, 20792081), (397, 19901740), (415, 19038532), (631, 12521380), (794, 9950870), (830, 9519266), (1262, 6260690), (1577, 5010140), (1588, 4975435), (1660, 4759633), (1985, 3980348), (2524, 3130345), (3154, 2505070), (3155, 2504276), (3970, 1990174), (6308, 1252535), (6310, 1252138), (7543, 1047460), (7885, 1002028), (7940, 995087), (11989, 659020), (12620, 626069), (15086, 523730), (15770, 501014), (23978, 329510), (30172, 261865), (31540, 250507), (32951, 239780), (37715, 209492), (47956, 164755), (52373, 150860), (59945, 131804), (65902, 119890), (75430, 104746)]