1281381000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{8059}}^1$

素因数の和:8136

約数の個数: 128

約数和(自身を含む): 4073846400

約数和(自身を除く): 2792465400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 53, 60, 75, 100, 106, 120, 125, 150, 159, 200, 212, 250, 265, 300, 318, 375, 424, 500, 530, 600, 636, 750, 795, 1000, 1060, 1272, 1325, 1500, 1590, 2120, 2650, 3000, 3180, 3975, 5300, 6360, 6625, 7950, 8059, 10600, 13250, 15900, 16118, 19875, 24177, 26500, 31800, 32236, 39750, 40295, 48354, 53000, 64472, 79500, 80590, 96708, 120885, 159000, 161180, 193416, 201475, 241770, 322360, 402950, 427127, 483540, 604425, 805900, 854254, 967080, 1007375, 1208850, 1281381, 1611800, 1708508, 2014750, 2135635, 2417700, 2562762, 3022125, 3417016, 4029500, 4271270, 4835400, 5125524, 6044250, 6406905, 8059000, 8542540, 10251048, 10678175, 12088500, 12813810, 17085080, 21356350, 24177000, 25627620, 32034525, 42712700, 51255240, 53390875, 64069050, 85425400, 106781750, 128138100, 160172625, 213563500, 256276200, 320345250, 427127000, 640690500, 1281381000]

約数ペア:

[(1, 1281381000), (2, 640690500), (3, 427127000), (4, 320345250), (5, 256276200), (6, 213563500), (8, 160172625), (10, 128138100), (12, 106781750), (15, 85425400), (20, 64069050), (24, 53390875), (25, 51255240), (30, 42712700), (40, 32034525), (50, 25627620), (53, 24177000), (60, 21356350), (75, 17085080), (100, 12813810), (106, 12088500), (120, 10678175), (125, 10251048), (150, 8542540), (159, 8059000), (200, 6406905), (212, 6044250), (250, 5125524), (265, 4835400), (300, 4271270), (318, 4029500), (375, 3417016), (424, 3022125), (500, 2562762), (530, 2417700), (600, 2135635), (636, 2014750), (750, 1708508), (795, 1611800), (1000, 1281381), (1060, 1208850), (1272, 1007375), (1325, 967080), (1500, 854254), (1590, 805900), (2120, 604425), (2650, 483540), (3000, 427127), (3180, 402950), (3975, 322360), (5300, 241770), (6360, 201475), (6625, 193416), (7950, 161180), (8059, 159000), (10600, 120885), (13250, 96708), (15900, 80590), (16118, 79500), (19875, 64472), (24177, 53000), (26500, 48354), (31800, 40295), (32236, 39750)]