643461840

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{42557}}^1$

素因数の和:42586

約数の個数: 160

約数和(自身を含む): 2533052160

約数和(自身を除く): 1889590320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 42557, 85114, 127671, 170228, 212785, 255342, 297899, 340456, 383013, 425570, 510684, 595798, 638355, 680912, 766026, 851140, 893697, 1021368, 1149039, 1191596, 1276710, 1489495, 1532052, 1702280, 1787394, 1915065, 2042736, 2298078, 2383192, 2553420, 2681091, 2978990, 3064104, 3404560, 3574788, 3830130, 4468485, 4596156, 4766384, 5106840, 5362182, 5745195, 5957980, 6128208, 7149576, 7660260, 8043273, 8936970, 9192312, 10213680, 10724364, 11490390, 11915960, 13405455, 14299152, 15320520, 16086546, 17873940, 18384624, 21448728, 22980780, 23831920, 26810910, 30641040, 32173092, 35747880, 40216365, 42897456, 45961560, 53621820, 64346184, 71495760, 80432730, 91923120, 107243640, 128692368, 160865460, 214487280, 321730920, 643461840]

約数ペア:

[(1, 643461840), (2, 321730920), (3, 214487280), (4, 160865460), (5, 128692368), (6, 107243640), (7, 91923120), (8, 80432730), (9, 71495760), (10, 64346184), (12, 53621820), (14, 45961560), (15, 42897456), (16, 40216365), (18, 35747880), (20, 32173092), (21, 30641040), (24, 26810910), (27, 23831920), (28, 22980780), (30, 21448728), (35, 18384624), (36, 17873940), (40, 16086546), (42, 15320520), (45, 14299152), (48, 13405455), (54, 11915960), (56, 11490390), (60, 10724364), (63, 10213680), (70, 9192312), (72, 8936970), (80, 8043273), (84, 7660260), (90, 7149576), (105, 6128208), (108, 5957980), (112, 5745195), (120, 5362182), (126, 5106840), (135, 4766384), (140, 4596156), (144, 4468485), (168, 3830130), (180, 3574788), (189, 3404560), (210, 3064104), (216, 2978990), (240, 2681091), (252, 2553420), (270, 2383192), (280, 2298078), (315, 2042736), (336, 1915065), (360, 1787394), (378, 1702280), (420, 1532052), (432, 1489495), (504, 1276710), (540, 1191596), (560, 1149039), (630, 1021368), (720, 893697), (756, 851140), (840, 766026), (945, 680912), (1008, 638355), (1080, 595798), (1260, 510684), (1512, 425570), (1680, 383013), (1890, 340456), (2160, 297899), (2520, 255342), (3024, 212785), (3780, 170228), (5040, 127671), (7560, 85114), (15120, 42557)]