221301240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1307}}^1$

素因数の和:1421

約数の個数: 128

約数和(自身を含む): 711970560

約数和(自身を除く): 490669320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 83, 85, 102, 120, 136, 166, 170, 204, 249, 255, 332, 340, 408, 415, 498, 510, 664, 680, 830, 996, 1020, 1245, 1307, 1411, 1660, 1992, 2040, 2490, 2614, 2822, 3320, 3921, 4233, 4980, 5228, 5644, 6535, 7055, 7842, 8466, 9960, 10456, 11288, 13070, 14110, 15684, 16932, 19605, 21165, 22219, 26140, 28220, 31368, 33864, 39210, 42330, 44438, 52280, 56440, 66657, 78420, 84660, 88876, 108481, 111095, 133314, 156840, 169320, 177752, 216962, 222190, 266628, 325443, 333285, 433924, 444380, 533256, 542405, 650886, 666570, 867848, 888760, 1084810, 1301772, 1333140, 1627215, 1844177, 2169620, 2603544, 2666280, 3254430, 3688354, 4339240, 5532531, 6508860, 7376708, 9220885, 11065062, 13017720, 14753416, 18441770, 22130124, 27662655, 36883540, 44260248, 55325310, 73767080, 110650620, 221301240]

約数ペア:

[(1, 221301240), (2, 110650620), (3, 73767080), (4, 55325310), (5, 44260248), (6, 36883540), (8, 27662655), (10, 22130124), (12, 18441770), (15, 14753416), (17, 13017720), (20, 11065062), (24, 9220885), (30, 7376708), (34, 6508860), (40, 5532531), (51, 4339240), (60, 3688354), (68, 3254430), (83, 2666280), (85, 2603544), (102, 2169620), (120, 1844177), (136, 1627215), (166, 1333140), (170, 1301772), (204, 1084810), (249, 888760), (255, 867848), (332, 666570), (340, 650886), (408, 542405), (415, 533256), (498, 444380), (510, 433924), (664, 333285), (680, 325443), (830, 266628), (996, 222190), (1020, 216962), (1245, 177752), (1307, 169320), (1411, 156840), (1660, 133314), (1992, 111095), (2040, 108481), (2490, 88876), (2614, 84660), (2822, 78420), (3320, 66657), (3921, 56440), (4233, 52280), (4980, 44438), (5228, 42330), (5644, 39210), (6535, 33864), (7055, 31368), (7842, 28220), (8466, 26140), (9960, 22219), (10456, 21165), (11288, 19605), (13070, 16932), (14110, 15684)]