400073940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2131}}^1$

素因数の和:2302

約数の個数: 144

約数和(自身を含む): 1396886400

約数和(自身を除く): 996812460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 149, 180, 210, 252, 298, 315, 420, 447, 596, 630, 745, 894, 1043, 1260, 1341, 1490, 1788, 2086, 2131, 2235, 2682, 2980, 3129, 4172, 4262, 4470, 5215, 5364, 6258, 6393, 6705, 8524, 8940, 9387, 10430, 10655, 12516, 12786, 13410, 14917, 15645, 18774, 19179, 20860, 21310, 25572, 26820, 29834, 31290, 31965, 37548, 38358, 42620, 44751, 46935, 59668, 62580, 63930, 74585, 76716, 89502, 93870, 95895, 127860, 134253, 149170, 179004, 187740, 191790, 223755, 268506, 298340, 317519, 383580, 447510, 537012, 635038, 671265, 895020, 952557, 1270076, 1342530, 1587595, 1905114, 2222633, 2685060, 2857671, 3175190, 3810228, 4445266, 4762785, 5715342, 6350380, 6667899, 8890532, 9525570, 11113165, 11430684, 13335798, 14288355, 19051140, 20003697, 22226330, 26671596, 28576710, 33339495, 40007394, 44452660, 57153420, 66678990, 80014788, 100018485, 133357980, 200036970, 400073940]

約数ペア:

[(1, 400073940), (2, 200036970), (3, 133357980), (4, 100018485), (5, 80014788), (6, 66678990), (7, 57153420), (9, 44452660), (10, 40007394), (12, 33339495), (14, 28576710), (15, 26671596), (18, 22226330), (20, 20003697), (21, 19051140), (28, 14288355), (30, 13335798), (35, 11430684), (36, 11113165), (42, 9525570), (45, 8890532), (60, 6667899), (63, 6350380), (70, 5715342), (84, 4762785), (90, 4445266), (105, 3810228), (126, 3175190), (140, 2857671), (149, 2685060), (180, 2222633), (210, 1905114), (252, 1587595), (298, 1342530), (315, 1270076), (420, 952557), (447, 895020), (596, 671265), (630, 635038), (745, 537012), (894, 447510), (1043, 383580), (1260, 317519), (1341, 298340), (1490, 268506), (1788, 223755), (2086, 191790), (2131, 187740), (2235, 179004), (2682, 149170), (2980, 134253), (3129, 127860), (4172, 95895), (4262, 93870), (4470, 89502), (5215, 76716), (5364, 74585), (6258, 63930), (6393, 62580), (6705, 59668), (8524, 46935), (8940, 44751), (9387, 42620), (10430, 38358), (10655, 37548), (12516, 31965), (12786, 31290), (13410, 29834), (14917, 26820), (15645, 25572), (18774, 21310), (19179, 20860)]