408025640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:483

約数の個数: 128

約数和(自身を含む): 1046027520

約数和(自身を除く): 638001880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 71, 74, 88, 110, 142, 148, 185, 220, 284, 296, 353, 355, 370, 407, 440, 568, 706, 710, 740, 781, 814, 1412, 1420, 1480, 1562, 1628, 1765, 2035, 2627, 2824, 2840, 3124, 3256, 3530, 3883, 3905, 4070, 5254, 6248, 7060, 7766, 7810, 8140, 10508, 13061, 13135, 14120, 15532, 15620, 16280, 19415, 21016, 25063, 26122, 26270, 28897, 31064, 31240, 38830, 50126, 52244, 52540, 57794, 65305, 77660, 100252, 104488, 105080, 115588, 125315, 130610, 143671, 144485, 155320, 200504, 231176, 250630, 261220, 275693, 287342, 288970, 501260, 522440, 551386, 574684, 577940, 718355, 927331, 1002520, 1102772, 1149368, 1155880, 1378465, 1436710, 1854662, 2205544, 2756930, 2873420, 3709324, 4636655, 5513860, 5746840, 7418648, 9273310, 10200641, 11027720, 18546620, 20401282, 37093240, 40802564, 51003205, 81605128, 102006410, 204012820, 408025640]

約数ペア:

[(1, 408025640), (2, 204012820), (4, 102006410), (5, 81605128), (8, 51003205), (10, 40802564), (11, 37093240), (20, 20401282), (22, 18546620), (37, 11027720), (40, 10200641), (44, 9273310), (55, 7418648), (71, 5746840), (74, 5513860), (88, 4636655), (110, 3709324), (142, 2873420), (148, 2756930), (185, 2205544), (220, 1854662), (284, 1436710), (296, 1378465), (353, 1155880), (355, 1149368), (370, 1102772), (407, 1002520), (440, 927331), (568, 718355), (706, 577940), (710, 574684), (740, 551386), (781, 522440), (814, 501260), (1412, 288970), (1420, 287342), (1480, 275693), (1562, 261220), (1628, 250630), (1765, 231176), (2035, 200504), (2627, 155320), (2824, 144485), (2840, 143671), (3124, 130610), (3256, 125315), (3530, 115588), (3883, 105080), (3905, 104488), (4070, 100252), (5254, 77660), (6248, 65305), (7060, 57794), (7766, 52540), (7810, 52244), (8140, 50126), (10508, 38830), (13061, 31240), (13135, 31064), (14120, 28897), (15532, 26270), (15620, 26122), (16280, 25063), (19415, 21016)]