20280312

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 40260168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 47, 52, 72, 78, 94, 104, 117, 141, 156, 188, 234, 282, 312, 376, 423, 461, 468, 564, 611, 846, 922, 936, 1128, 1222, 1383, 1692, 1833, 1844, 2444, 2766, 3384, 3666, 3688, 4149, 4888, 5499, 5532, 5993, 7332, 8298, 10998, 11064, 11986, 14664, 16596, 17979, 21667, 21996, 23972, 33192, 35958, 43334, 43992, 47944, 53937, 65001, 71916, 86668, 107874, 130002, 143832, 173336, 195003, 215748, 260004, 281671, 390006, 431496, 520008, 563342, 780012, 845013, 1126684, 1560024, 1690026, 2253368, 2535039, 3380052, 5070078, 6760104, 10140156, 20280312]

約数ペア:

[(1, 20280312), (2, 10140156), (3, 6760104), (4, 5070078), (6, 3380052), (8, 2535039), (9, 2253368), (12, 1690026), (13, 1560024), (18, 1126684), (24, 845013), (26, 780012), (36, 563342), (39, 520008), (47, 431496), (52, 390006), (72, 281671), (78, 260004), (94, 215748), (104, 195003), (117, 173336), (141, 143832), (156, 130002), (188, 107874), (234, 86668), (282, 71916), (312, 65001), (376, 53937), (423, 47944), (461, 43992), (468, 43334), (564, 35958), (611, 33192), (846, 23972), (922, 21996), (936, 21667), (1128, 17979), (1222, 16596), (1383, 14664), (1692, 11986), (1833, 11064), (1844, 10998), (2444, 8298), (2766, 7332), (3384, 5993), (3666, 5532), (3688, 5499), (4149, 4888)]