2780010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 8087040

約数和(自身を除く): 5307030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 23, 30, 34, 45, 46, 51, 69, 79, 85, 90, 102, 115, 138, 153, 158, 170, 207, 230, 237, 255, 306, 345, 391, 395, 414, 474, 510, 690, 711, 765, 782, 790, 1035, 1173, 1185, 1343, 1422, 1530, 1817, 1955, 2070, 2346, 2370, 2686, 3519, 3555, 3634, 3910, 4029, 5451, 5865, 6715, 7038, 7110, 8058, 9085, 10902, 11730, 12087, 13430, 16353, 17595, 18170, 20145, 24174, 27255, 30889, 32706, 35190, 40290, 54510, 60435, 61778, 81765, 92667, 120870, 154445, 163530, 185334, 278001, 308890, 463335, 556002, 926670, 1390005, 2780010]

約数ペア:

[(1, 2780010), (2, 1390005), (3, 926670), (5, 556002), (6, 463335), (9, 308890), (10, 278001), (15, 185334), (17, 163530), (18, 154445), (23, 120870), (30, 92667), (34, 81765), (45, 61778), (46, 60435), (51, 54510), (69, 40290), (79, 35190), (85, 32706), (90, 30889), (102, 27255), (115, 24174), (138, 20145), (153, 18170), (158, 17595), (170, 16353), (207, 13430), (230, 12087), (237, 11730), (255, 10902), (306, 9085), (345, 8058), (391, 7110), (395, 7038), (414, 6715), (474, 5865), (510, 5451), (690, 4029), (711, 3910), (765, 3634), (782, 3555), (790, 3519), (1035, 2686), (1173, 2370), (1185, 2346), (1343, 2070), (1422, 1955), (1530, 1817)]