389952800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:631

約数の個数: 144

約数和(自身を含む): 1028887272

約数和(自身を除く): 638934472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 53, 68, 80, 85, 100, 106, 136, 160, 170, 200, 212, 265, 272, 340, 400, 424, 425, 530, 541, 544, 680, 800, 848, 850, 901, 1060, 1082, 1325, 1360, 1696, 1700, 1802, 2120, 2164, 2650, 2705, 2720, 3400, 3604, 4240, 4328, 4505, 5300, 5410, 6800, 7208, 8480, 8656, 9010, 9197, 10600, 10820, 13525, 13600, 14416, 17312, 18020, 18394, 21200, 21640, 22525, 27050, 28673, 28832, 36040, 36788, 42400, 43280, 45050, 45985, 54100, 57346, 72080, 73576, 86560, 90100, 91970, 108200, 114692, 143365, 144160, 147152, 180200, 183940, 216400, 229384, 229925, 286730, 294304, 360400, 367880, 432800, 458768, 459850, 487441, 573460, 716825, 720800, 735760, 917536, 919700, 974882, 1146920, 1433650, 1471520, 1839400, 1949764, 2293840, 2437205, 2867300, 3678800, 3899528, 4587680, 4874410, 5734600, 7357600, 7799056, 9748820, 11469200, 12186025, 15598112, 19497640, 22938400, 24372050, 38995280, 48744100, 77990560, 97488200, 194976400, 389952800]

約数ペア:

[(1, 389952800), (2, 194976400), (4, 97488200), (5, 77990560), (8, 48744100), (10, 38995280), (16, 24372050), (17, 22938400), (20, 19497640), (25, 15598112), (32, 12186025), (34, 11469200), (40, 9748820), (50, 7799056), (53, 7357600), (68, 5734600), (80, 4874410), (85, 4587680), (100, 3899528), (106, 3678800), (136, 2867300), (160, 2437205), (170, 2293840), (200, 1949764), (212, 1839400), (265, 1471520), (272, 1433650), (340, 1146920), (400, 974882), (424, 919700), (425, 917536), (530, 735760), (541, 720800), (544, 716825), (680, 573460), (800, 487441), (848, 459850), (850, 458768), (901, 432800), (1060, 367880), (1082, 360400), (1325, 294304), (1360, 286730), (1696, 229925), (1700, 229384), (1802, 216400), (2120, 183940), (2164, 180200), (2650, 147152), (2705, 144160), (2720, 143365), (3400, 114692), (3604, 108200), (4240, 91970), (4328, 90100), (4505, 86560), (5300, 73576), (5410, 72080), (6800, 57346), (7208, 54100), (8480, 45985), (8656, 45050), (9010, 43280), (9197, 42400), (10600, 36788), (10820, 36040), (13525, 28832), (13600, 28673), (14416, 27050), (17312, 22525), (18020, 21640), (18394, 21200)]