400480766720

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{76367}}^1$

素因数の和:76646

約数の個数: 144

約数和(自身を含む): 1019932518528

約数和(自身を除く): 619451751808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 241, 256, 272, 320, 340, 482, 544, 640, 680, 964, 1088, 1205, 1280, 1360, 1928, 2176, 2410, 2720, 3856, 4097, 4352, 4820, 5440, 7712, 8194, 9640, 10880, 15424, 16388, 19280, 20485, 21760, 30848, 32776, 38560, 40970, 61696, 65552, 76367, 77120, 81940, 131104, 152734, 154240, 163880, 262208, 305468, 308480, 327760, 381835, 524416, 610936, 655520, 763670, 1048832, 1221872, 1298239, 1311040, 1527340, 2443744, 2596478, 2622080, 3054680, 4887488, 5192956, 5244160, 6109360, 6491195, 9774976, 10385912, 12218720, 12982390, 18404447, 19549952, 20771824, 24437440, 25964780, 36808894, 41543648, 48874880, 51929560, 73617788, 83087296, 92022235, 97749760, 103859120, 147235576, 166174592, 184044470, 207718240, 294471152, 312875599, 332349184, 368088940, 415436480, 588942304, 625751198, 736177880, 830872960, 1177884608, 1251502396, 1472355760, 1564377995, 1661745920, 2355769216, 2503004792, 2944711520, 3128755990, 4711538432, 5006009584, 5889423040, 6257511980, 10012019168, 11778846080, 12515023960, 20024038336, 23557692160, 25030047920, 40048076672, 50060095840, 80096153344, 100120191680, 200240383360, 400480766720]

約数ペア:

[(1, 400480766720), (2, 200240383360), (4, 100120191680), (5, 80096153344), (8, 50060095840), (10, 40048076672), (16, 25030047920), (17, 23557692160), (20, 20024038336), (32, 12515023960), (34, 11778846080), (40, 10012019168), (64, 6257511980), (68, 5889423040), (80, 5006009584), (85, 4711538432), (128, 3128755990), (136, 2944711520), (160, 2503004792), (170, 2355769216), (241, 1661745920), (256, 1564377995), (272, 1472355760), (320, 1251502396), (340, 1177884608), (482, 830872960), (544, 736177880), (640, 625751198), (680, 588942304), (964, 415436480), (1088, 368088940), (1205, 332349184), (1280, 312875599), (1360, 294471152), (1928, 207718240), (2176, 184044470), (2410, 166174592), (2720, 147235576), (3856, 103859120), (4097, 97749760), (4352, 92022235), (4820, 83087296), (5440, 73617788), (7712, 51929560), (8194, 48874880), (9640, 41543648), (10880, 36808894), (15424, 25964780), (16388, 24437440), (19280, 20771824), (20485, 19549952), (21760, 18404447), (30848, 12982390), (32776, 12218720), (38560, 10385912), (40970, 9774976), (61696, 6491195), (65552, 6109360), (76367, 5244160), (77120, 5192956), (81940, 4887488), (131104, 3054680), (152734, 2622080), (154240, 2596478), (163880, 2443744), (262208, 1527340), (305468, 1311040), (308480, 1298239), (327760, 1221872), (381835, 1048832), (524416, 763670), (610936, 655520)]