1290192410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{823}}^1$

素因数の和:1263

約数の個数: 64

約数和(自身を含む): 2591447040

約数和(自身を除く): 1301254630

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 389, 403, 778, 806, 823, 1646, 1945, 2015, 3890, 4030, 4115, 5057, 8230, 10114, 10699, 12059, 21398, 24118, 25285, 25513, 50570, 51026, 53495, 60295, 106990, 120590, 127565, 156767, 255130, 313534, 320147, 331669, 640294, 663338, 783835, 1567670, 1600735, 1658345, 3201470, 3316690, 4161911, 8323822, 9924557, 19849114, 20809555, 41619110, 49622785, 99245570, 129019241, 258038482, 645096205, 1290192410]

約数ペア:

[(1, 1290192410), (2, 645096205), (5, 258038482), (10, 129019241), (13, 99245570), (26, 49622785), (31, 41619110), (62, 20809555), (65, 19849114), (130, 9924557), (155, 8323822), (310, 4161911), (389, 3316690), (403, 3201470), (778, 1658345), (806, 1600735), (823, 1567670), (1646, 783835), (1945, 663338), (2015, 640294), (3890, 331669), (4030, 320147), (4115, 313534), (5057, 255130), (8230, 156767), (10114, 127565), (10699, 120590), (12059, 106990), (21398, 60295), (24118, 53495), (25285, 51026), (25513, 50570)]