69487640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 160380000

約数和(自身を除く): 90892360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 131, 149, 178, 262, 298, 356, 445, 524, 596, 655, 712, 745, 890, 1048, 1192, 1310, 1490, 1780, 2620, 2980, 3560, 5240, 5960, 11659, 13261, 19519, 23318, 26522, 39038, 46636, 53044, 58295, 66305, 78076, 93272, 97595, 106088, 116590, 132610, 156152, 195190, 233180, 265220, 390380, 466360, 530440, 780760, 1737191, 3474382, 6948764, 8685955, 13897528, 17371910, 34743820, 69487640]

約数ペア:

[(1, 69487640), (2, 34743820), (4, 17371910), (5, 13897528), (8, 8685955), (10, 6948764), (20, 3474382), (40, 1737191), (89, 780760), (131, 530440), (149, 466360), (178, 390380), (262, 265220), (298, 233180), (356, 195190), (445, 156152), (524, 132610), (596, 116590), (655, 106088), (712, 97595), (745, 93272), (890, 78076), (1048, 66305), (1192, 58295), (1310, 53044), (1490, 46636), (1780, 39038), (2620, 26522), (2980, 23318), (3560, 19519), (5240, 13261), (5960, 11659)]