31519320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 109209600

約数和(自身を除く): 77690280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 239, 280, 314, 420, 471, 478, 628, 717, 785, 840, 942, 956, 1099, 1195, 1256, 1434, 1570, 1673, 1884, 1912, 2198, 2355, 2390, 2868, 3140, 3297, 3346, 3585, 3768, 4396, 4710, 4780, 5019, 5495, 5736, 6280, 6594, 6692, 7170, 8365, 8792, 9420, 9560, 10038, 10990, 13188, 13384, 14340, 16485, 16730, 18840, 20076, 21980, 25095, 26376, 28680, 32970, 33460, 37523, 40152, 43960, 50190, 65940, 66920, 75046, 100380, 112569, 131880, 150092, 187615, 200760, 225138, 262661, 300184, 375230, 450276, 525322, 562845, 750460, 787983, 900552, 1050644, 1125690, 1313305, 1500920, 1575966, 2101288, 2251380, 2626610, 3151932, 3939915, 4502760, 5253220, 6303864, 7879830, 10506440, 15759660, 31519320]

約数ペア:

[(1, 31519320), (2, 15759660), (3, 10506440), (4, 7879830), (5, 6303864), (6, 5253220), (7, 4502760), (8, 3939915), (10, 3151932), (12, 2626610), (14, 2251380), (15, 2101288), (20, 1575966), (21, 1500920), (24, 1313305), (28, 1125690), (30, 1050644), (35, 900552), (40, 787983), (42, 750460), (56, 562845), (60, 525322), (70, 450276), (84, 375230), (105, 300184), (120, 262661), (140, 225138), (157, 200760), (168, 187615), (210, 150092), (239, 131880), (280, 112569), (314, 100380), (420, 75046), (471, 66920), (478, 65940), (628, 50190), (717, 43960), (785, 40152), (840, 37523), (942, 33460), (956, 32970), (1099, 28680), (1195, 26376), (1256, 25095), (1434, 21980), (1570, 20076), (1673, 18840), (1884, 16730), (1912, 16485), (2198, 14340), (2355, 13384), (2390, 13188), (2868, 10990), (3140, 10038), (3297, 9560), (3346, 9420), (3585, 8792), (3768, 8365), (4396, 7170), (4710, 6692), (4780, 6594), (5019, 6280), (5495, 5736)]