311908980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 945391104

約数和(自身を除く): 633482124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 317, 345, 372, 460, 465, 529, 620, 634, 690, 713, 930, 951, 1058, 1268, 1380, 1426, 1585, 1587, 1860, 1902, 2116, 2139, 2645, 2852, 3170, 3174, 3565, 3804, 4278, 4755, 5290, 6340, 6348, 7130, 7291, 7935, 8556, 9510, 9827, 10580, 10695, 14260, 14582, 15870, 16399, 19020, 19654, 21390, 21873, 29164, 29481, 31740, 32798, 36455, 39308, 42780, 43746, 49135, 49197, 58962, 65596, 72910, 81995, 87492, 98270, 98394, 109365, 117924, 145820, 147405, 163990, 167693, 196540, 196788, 218730, 226021, 245985, 294810, 327980, 335386, 437460, 452042, 491970, 503079, 589620, 670772, 678063, 838465, 904084, 983940, 1006158, 1130105, 1356126, 1676930, 2012316, 2260210, 2515395, 2712252, 3353860, 3390315, 4520420, 5030790, 5198483, 6780630, 10061580, 10396966, 13561260, 15595449, 20793932, 25992415, 31190898, 51984830, 62381796, 77977245, 103969660, 155954490, 311908980]

約数ペア:

[(1, 311908980), (2, 155954490), (3, 103969660), (4, 77977245), (5, 62381796), (6, 51984830), (10, 31190898), (12, 25992415), (15, 20793932), (20, 15595449), (23, 13561260), (30, 10396966), (31, 10061580), (46, 6780630), (60, 5198483), (62, 5030790), (69, 4520420), (92, 3390315), (93, 3353860), (115, 2712252), (124, 2515395), (138, 2260210), (155, 2012316), (186, 1676930), (230, 1356126), (276, 1130105), (310, 1006158), (317, 983940), (345, 904084), (372, 838465), (460, 678063), (465, 670772), (529, 589620), (620, 503079), (634, 491970), (690, 452042), (713, 437460), (930, 335386), (951, 327980), (1058, 294810), (1268, 245985), (1380, 226021), (1426, 218730), (1585, 196788), (1587, 196540), (1860, 167693), (1902, 163990), (2116, 147405), (2139, 145820), (2645, 117924), (2852, 109365), (3170, 98394), (3174, 98270), (3565, 87492), (3804, 81995), (4278, 72910), (4755, 65596), (5290, 58962), (6340, 49197), (6348, 49135), (7130, 43746), (7291, 42780), (7935, 39308), (8556, 36455), (9510, 32798), (9827, 31740), (10580, 29481), (10695, 29164), (14260, 21873), (14582, 21390), (15870, 19654), (16399, 19020)]