278375680

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1163}}^1$

素因数の和:1212

約数の個数: 144

約数和(自身を含む): 770865984

約数和(自身を除く): 492490304

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 187, 220, 256, 272, 320, 340, 352, 374, 440, 544, 640, 680, 704, 748, 880, 935, 1088, 1163, 1280, 1360, 1408, 1496, 1760, 1870, 2176, 2326, 2720, 2816, 2992, 3520, 3740, 4352, 4652, 5440, 5815, 5984, 7040, 7480, 9304, 10880, 11630, 11968, 12793, 14080, 14960, 18608, 19771, 21760, 23260, 23936, 25586, 29920, 37216, 39542, 46520, 47872, 51172, 59840, 63965, 74432, 79084, 93040, 98855, 102344, 119680, 127930, 148864, 158168, 186080, 197710, 204688, 217481, 239360, 255860, 297728, 316336, 372160, 395420, 409376, 434962, 511720, 632672, 744320, 790840, 818752, 869924, 1023440, 1087405, 1265344, 1488640, 1581680, 1637504, 1739848, 2046880, 2174810, 2530688, 3163360, 3275008, 3479696, 4093760, 4349620, 5061376, 6326720, 6959392, 8187520, 8699240, 12653440, 13918784, 16375040, 17398480, 25306880, 27837568, 34796960, 55675136, 69593920, 139187840, 278375680]

約数ペア:

[(1, 278375680), (2, 139187840), (4, 69593920), (5, 55675136), (8, 34796960), (10, 27837568), (11, 25306880), (16, 17398480), (17, 16375040), (20, 13918784), (22, 12653440), (32, 8699240), (34, 8187520), (40, 6959392), (44, 6326720), (55, 5061376), (64, 4349620), (68, 4093760), (80, 3479696), (85, 3275008), (88, 3163360), (110, 2530688), (128, 2174810), (136, 2046880), (160, 1739848), (170, 1637504), (176, 1581680), (187, 1488640), (220, 1265344), (256, 1087405), (272, 1023440), (320, 869924), (340, 818752), (352, 790840), (374, 744320), (440, 632672), (544, 511720), (640, 434962), (680, 409376), (704, 395420), (748, 372160), (880, 316336), (935, 297728), (1088, 255860), (1163, 239360), (1280, 217481), (1360, 204688), (1408, 197710), (1496, 186080), (1760, 158168), (1870, 148864), (2176, 127930), (2326, 119680), (2720, 102344), (2816, 98855), (2992, 93040), (3520, 79084), (3740, 74432), (4352, 63965), (4652, 59840), (5440, 51172), (5815, 47872), (5984, 46520), (7040, 39542), (7480, 37216), (9304, 29920), (10880, 25586), (11630, 23936), (11968, 23260), (12793, 21760), (14080, 19771), (14960, 18608)]