1640019840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2729}}^1$

素因数の和:3064

約数の個数: 128

約数和(自身を含む): 5246186400

約数和(自身を除く): 3606166560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 313, 320, 384, 480, 626, 640, 939, 960, 1252, 1565, 1878, 1920, 2504, 2729, 3130, 3756, 4695, 5008, 5458, 6260, 7512, 8187, 9390, 10016, 10916, 12520, 13645, 15024, 16374, 18780, 20032, 21832, 25040, 27290, 30048, 32748, 37560, 40064, 40935, 43664, 50080, 54580, 60096, 65496, 75120, 81870, 87328, 100160, 109160, 120192, 130992, 150240, 163740, 174656, 200320, 218320, 261984, 300480, 327480, 349312, 436640, 523968, 600960, 654960, 854177, 873280, 1047936, 1309920, 1708354, 1746560, 2562531, 2619840, 3416708, 4270885, 5125062, 5239680, 6833416, 8541770, 10250124, 12812655, 13666832, 17083540, 20500248, 25625310, 27333664, 34167080, 41000496, 51250620, 54667328, 68334160, 82000992, 102501240, 109334656, 136668320, 164001984, 205002480, 273336640, 328003968, 410004960, 546673280, 820009920, 1640019840]

約数ペア:

[(1, 1640019840), (2, 820009920), (3, 546673280), (4, 410004960), (5, 328003968), (6, 273336640), (8, 205002480), (10, 164001984), (12, 136668320), (15, 109334656), (16, 102501240), (20, 82000992), (24, 68334160), (30, 54667328), (32, 51250620), (40, 41000496), (48, 34167080), (60, 27333664), (64, 25625310), (80, 20500248), (96, 17083540), (120, 13666832), (128, 12812655), (160, 10250124), (192, 8541770), (240, 6833416), (313, 5239680), (320, 5125062), (384, 4270885), (480, 3416708), (626, 2619840), (640, 2562531), (939, 1746560), (960, 1708354), (1252, 1309920), (1565, 1047936), (1878, 873280), (1920, 854177), (2504, 654960), (2729, 600960), (3130, 523968), (3756, 436640), (4695, 349312), (5008, 327480), (5458, 300480), (6260, 261984), (7512, 218320), (8187, 200320), (9390, 174656), (10016, 163740), (10916, 150240), (12520, 130992), (13645, 120192), (15024, 109160), (16374, 100160), (18780, 87328), (20032, 81870), (21832, 75120), (25040, 65496), (27290, 60096), (30048, 54580), (32748, 50080), (37560, 43664), (40064, 40935)]