28855320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:429

約数の個数: 128

約数和(自身を含む): 95256000

約数和(自身を除く): 66400680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 53, 60, 65, 78, 104, 106, 120, 130, 156, 159, 195, 212, 260, 265, 312, 318, 349, 390, 424, 520, 530, 636, 689, 698, 780, 795, 1047, 1060, 1272, 1378, 1396, 1560, 1590, 1745, 2067, 2094, 2120, 2756, 2792, 3180, 3445, 3490, 4134, 4188, 4537, 5235, 5512, 6360, 6890, 6980, 8268, 8376, 9074, 10335, 10470, 13611, 13780, 13960, 16536, 18148, 18497, 20670, 20940, 22685, 27222, 27560, 36296, 36994, 41340, 41880, 45370, 54444, 55491, 68055, 73988, 82680, 90740, 92485, 108888, 110982, 136110, 147976, 181480, 184970, 221964, 240461, 272220, 277455, 369940, 443928, 480922, 544440, 554910, 721383, 739880, 961844, 1109820, 1202305, 1442766, 1923688, 2219640, 2404610, 2885532, 3606915, 4809220, 5771064, 7213830, 9618440, 14427660, 28855320]

約数ペア:

[(1, 28855320), (2, 14427660), (3, 9618440), (4, 7213830), (5, 5771064), (6, 4809220), (8, 3606915), (10, 2885532), (12, 2404610), (13, 2219640), (15, 1923688), (20, 1442766), (24, 1202305), (26, 1109820), (30, 961844), (39, 739880), (40, 721383), (52, 554910), (53, 544440), (60, 480922), (65, 443928), (78, 369940), (104, 277455), (106, 272220), (120, 240461), (130, 221964), (156, 184970), (159, 181480), (195, 147976), (212, 136110), (260, 110982), (265, 108888), (312, 92485), (318, 90740), (349, 82680), (390, 73988), (424, 68055), (520, 55491), (530, 54444), (636, 45370), (689, 41880), (698, 41340), (780, 36994), (795, 36296), (1047, 27560), (1060, 27222), (1272, 22685), (1378, 20940), (1396, 20670), (1560, 18497), (1590, 18148), (1745, 16536), (2067, 13960), (2094, 13780), (2120, 13611), (2756, 10470), (2792, 10335), (3180, 9074), (3445, 8376), (3490, 8268), (4134, 6980), (4188, 6890), (4537, 6360), (5235, 5512)]