16572920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 47779200

約数和(自身を除く): 31206280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 91, 104, 116, 130, 140, 145, 157, 182, 203, 232, 260, 280, 290, 314, 364, 377, 406, 455, 520, 580, 628, 728, 754, 785, 812, 910, 1015, 1099, 1160, 1256, 1508, 1570, 1624, 1820, 1885, 2030, 2041, 2198, 2639, 3016, 3140, 3640, 3770, 4060, 4082, 4396, 4553, 5278, 5495, 6280, 7540, 8120, 8164, 8792, 9106, 10205, 10556, 10990, 13195, 14287, 15080, 16328, 18212, 20410, 21112, 21980, 22765, 26390, 28574, 31871, 36424, 40820, 43960, 45530, 52780, 57148, 59189, 63742, 71435, 81640, 91060, 105560, 114296, 118378, 127484, 142870, 159355, 182120, 236756, 254968, 285740, 295945, 318710, 414323, 473512, 571480, 591890, 637420, 828646, 1183780, 1274840, 1657292, 2071615, 2367560, 3314584, 4143230, 8286460, 16572920]

約数ペア:

[(1, 16572920), (2, 8286460), (4, 4143230), (5, 3314584), (7, 2367560), (8, 2071615), (10, 1657292), (13, 1274840), (14, 1183780), (20, 828646), (26, 637420), (28, 591890), (29, 571480), (35, 473512), (40, 414323), (52, 318710), (56, 295945), (58, 285740), (65, 254968), (70, 236756), (91, 182120), (104, 159355), (116, 142870), (130, 127484), (140, 118378), (145, 114296), (157, 105560), (182, 91060), (203, 81640), (232, 71435), (260, 63742), (280, 59189), (290, 57148), (314, 52780), (364, 45530), (377, 43960), (406, 40820), (455, 36424), (520, 31871), (580, 28574), (628, 26390), (728, 22765), (754, 21980), (785, 21112), (812, 20410), (910, 18212), (1015, 16328), (1099, 15080), (1160, 14287), (1256, 13195), (1508, 10990), (1570, 10556), (1624, 10205), (1820, 9106), (1885, 8792), (2030, 8164), (2041, 8120), (2198, 7540), (2639, 6280), (3016, 5495), (3140, 5278), (3640, 4553), (3770, 4396), (4060, 4082)]