978018930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{221773}}^1$

素因数の和:221800

約数の個数: 72

約数和(自身を含む): 2958021612

約数和(自身を除く): 1980002682

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 221773, 443546, 665319, 1108865, 1330638, 1552411, 1995957, 2217730, 3104822, 3326595, 3991914, 4657233, 6653190, 7762055, 9314466, 9979785, 10866877, 13971699, 15524110, 19959570, 21733754, 23286165, 27943398, 32600631, 46572330, 54334385, 65201262, 69858495, 97801893, 108668770, 139716990, 163003155, 195603786, 326006310, 489009465, 978018930]

約数ペア:

[(1, 978018930), (2, 489009465), (3, 326006310), (5, 195603786), (6, 163003155), (7, 139716990), (9, 108668770), (10, 97801893), (14, 69858495), (15, 65201262), (18, 54334385), (21, 46572330), (30, 32600631), (35, 27943398), (42, 23286165), (45, 21733754), (49, 19959570), (63, 15524110), (70, 13971699), (90, 10866877), (98, 9979785), (105, 9314466), (126, 7762055), (147, 6653190), (210, 4657233), (245, 3991914), (294, 3326595), (315, 3104822), (441, 2217730), (490, 1995957), (630, 1552411), (735, 1330638), (882, 1108865), (1470, 665319), (2205, 443546), (4410, 221773)]