12821580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 42981120

約数和(自身を除く): 30159540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 163, 171, 180, 190, 207, 228, 230, 276, 285, 326, 342, 345, 380, 414, 437, 460, 489, 570, 652, 684, 690, 815, 828, 855, 874, 978, 1035, 1140, 1311, 1380, 1467, 1630, 1710, 1748, 1956, 2070, 2185, 2445, 2622, 2934, 3097, 3260, 3420, 3749, 3933, 4140, 4370, 4890, 5244, 5868, 6194, 6555, 7335, 7498, 7866, 8740, 9291, 9780, 11247, 12388, 13110, 14670, 14996, 15485, 15732, 18582, 18745, 19665, 22494, 26220, 27873, 29340, 30970, 33741, 37164, 37490, 39330, 44988, 46455, 55746, 56235, 61940, 67482, 71231, 74980, 78660, 92910, 111492, 112470, 134964, 139365, 142462, 168705, 185820, 213693, 224940, 278730, 284924, 337410, 356155, 427386, 557460, 641079, 674820, 712310, 854772, 1068465, 1282158, 1424620, 2136930, 2564316, 3205395, 4273860, 6410790, 12821580]

約数ペア:

[(1, 12821580), (2, 6410790), (3, 4273860), (4, 3205395), (5, 2564316), (6, 2136930), (9, 1424620), (10, 1282158), (12, 1068465), (15, 854772), (18, 712310), (19, 674820), (20, 641079), (23, 557460), (30, 427386), (36, 356155), (38, 337410), (45, 284924), (46, 278730), (57, 224940), (60, 213693), (69, 185820), (76, 168705), (90, 142462), (92, 139365), (95, 134964), (114, 112470), (115, 111492), (138, 92910), (163, 78660), (171, 74980), (180, 71231), (190, 67482), (207, 61940), (228, 56235), (230, 55746), (276, 46455), (285, 44988), (326, 39330), (342, 37490), (345, 37164), (380, 33741), (414, 30970), (437, 29340), (460, 27873), (489, 26220), (570, 22494), (652, 19665), (684, 18745), (690, 18582), (815, 15732), (828, 15485), (855, 14996), (874, 14670), (978, 13110), (1035, 12388), (1140, 11247), (1311, 9780), (1380, 9291), (1467, 8740), (1630, 7866), (1710, 7498), (1748, 7335), (1956, 6555), (2070, 6194), (2185, 5868), (2445, 5244), (2622, 4890), (2934, 4370), (3097, 4140), (3260, 3933), (3420, 3749)]