278555280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:489

約数の個数: 160

約数和(自身を含む): 896728320

約数和(自身を除く): 618173040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 61, 80, 106, 120, 122, 159, 183, 212, 240, 244, 265, 305, 318, 359, 366, 424, 488, 530, 610, 636, 718, 732, 795, 848, 915, 976, 1060, 1077, 1220, 1272, 1436, 1464, 1590, 1795, 1830, 2120, 2154, 2440, 2544, 2872, 2928, 3180, 3233, 3590, 3660, 4240, 4308, 4880, 5385, 5744, 6360, 6466, 7180, 7320, 8616, 9699, 10770, 12720, 12932, 14360, 14640, 16165, 17232, 19027, 19398, 21540, 21899, 25864, 28720, 32330, 38054, 38796, 43080, 43798, 48495, 51728, 57081, 64660, 65697, 76108, 77592, 86160, 87596, 95135, 96990, 109495, 114162, 129320, 131394, 152216, 155184, 175192, 190270, 193980, 218990, 228324, 258640, 262788, 285405, 304432, 328485, 350384, 380540, 387960, 437980, 456648, 525576, 570810, 656970, 761080, 775920, 875960, 913296, 1051152, 1141620, 1160647, 1313940, 1522160, 1751920, 2283240, 2321294, 2627880, 3481941, 4566480, 4642588, 5255760, 5803235, 6963882, 9285176, 11606470, 13927764, 17409705, 18570352, 23212940, 27855528, 34819410, 46425880, 55711056, 69638820, 92851760, 139277640, 278555280]

約数ペア:

[(1, 278555280), (2, 139277640), (3, 92851760), (4, 69638820), (5, 55711056), (6, 46425880), (8, 34819410), (10, 27855528), (12, 23212940), (15, 18570352), (16, 17409705), (20, 13927764), (24, 11606470), (30, 9285176), (40, 6963882), (48, 5803235), (53, 5255760), (60, 4642588), (61, 4566480), (80, 3481941), (106, 2627880), (120, 2321294), (122, 2283240), (159, 1751920), (183, 1522160), (212, 1313940), (240, 1160647), (244, 1141620), (265, 1051152), (305, 913296), (318, 875960), (359, 775920), (366, 761080), (424, 656970), (488, 570810), (530, 525576), (610, 456648), (636, 437980), (718, 387960), (732, 380540), (795, 350384), (848, 328485), (915, 304432), (976, 285405), (1060, 262788), (1077, 258640), (1220, 228324), (1272, 218990), (1436, 193980), (1464, 190270), (1590, 175192), (1795, 155184), (1830, 152216), (2120, 131394), (2154, 129320), (2440, 114162), (2544, 109495), (2872, 96990), (2928, 95135), (3180, 87596), (3233, 86160), (3590, 77592), (3660, 76108), (4240, 65697), (4308, 64660), (4880, 57081), (5385, 51728), (5744, 48495), (6360, 43798), (6466, 43080), (7180, 38796), (7320, 38054), (8616, 32330), (9699, 28720), (10770, 25864), (12720, 21899), (12932, 21540), (14360, 19398), (14640, 19027), (16165, 17232)]