389726820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6581}}^1$

素因数の和:6650

約数の個数: 144

約数和(自身を含む): 1380008448

約数和(自身を除く): 990281628

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 60, 63, 70, 84, 90, 94, 105, 126, 140, 141, 180, 188, 210, 235, 252, 282, 315, 329, 420, 423, 470, 564, 630, 658, 705, 846, 940, 987, 1260, 1316, 1410, 1645, 1692, 1974, 2115, 2820, 2961, 3290, 3948, 4230, 4935, 5922, 6580, 6581, 8460, 9870, 11844, 13162, 14805, 19740, 19743, 26324, 29610, 32905, 39486, 46067, 59220, 59229, 65810, 78972, 92134, 98715, 118458, 131620, 138201, 184268, 197430, 230335, 236916, 276402, 296145, 309307, 394860, 414603, 460670, 552804, 592290, 618614, 691005, 829206, 921340, 927921, 1184580, 1237228, 1382010, 1546535, 1658412, 1855842, 2073015, 2165149, 2764020, 2783763, 3093070, 3711684, 4146030, 4330298, 4639605, 5567526, 6186140, 6495447, 8292060, 8660596, 9279210, 10825745, 11135052, 12990894, 13918815, 18558420, 19486341, 21651490, 25981788, 27837630, 32477235, 38972682, 43302980, 55675260, 64954470, 77945364, 97431705, 129908940, 194863410, 389726820]

約数ペア:

[(1, 389726820), (2, 194863410), (3, 129908940), (4, 97431705), (5, 77945364), (6, 64954470), (7, 55675260), (9, 43302980), (10, 38972682), (12, 32477235), (14, 27837630), (15, 25981788), (18, 21651490), (20, 19486341), (21, 18558420), (28, 13918815), (30, 12990894), (35, 11135052), (36, 10825745), (42, 9279210), (45, 8660596), (47, 8292060), (60, 6495447), (63, 6186140), (70, 5567526), (84, 4639605), (90, 4330298), (94, 4146030), (105, 3711684), (126, 3093070), (140, 2783763), (141, 2764020), (180, 2165149), (188, 2073015), (210, 1855842), (235, 1658412), (252, 1546535), (282, 1382010), (315, 1237228), (329, 1184580), (420, 927921), (423, 921340), (470, 829206), (564, 691005), (630, 618614), (658, 592290), (705, 552804), (846, 460670), (940, 414603), (987, 394860), (1260, 309307), (1316, 296145), (1410, 276402), (1645, 236916), (1692, 230335), (1974, 197430), (2115, 184268), (2820, 138201), (2961, 131620), (3290, 118458), (3948, 98715), (4230, 92134), (4935, 78972), (5922, 65810), (6580, 59229), (6581, 59220), (8460, 46067), (9870, 39486), (11844, 32905), (13162, 29610), (14805, 26324), (19740, 19743)]