20209888920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{315977}}^1$

素因数の和:316045

約数の個数: 128

約数和(自身を含む): 66886223040

約数和(自身を除く): 46676334120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 41, 52, 60, 65, 78, 82, 104, 120, 123, 130, 156, 164, 195, 205, 246, 260, 312, 328, 390, 410, 492, 520, 533, 615, 780, 820, 984, 1066, 1230, 1560, 1599, 1640, 2132, 2460, 2665, 3198, 4264, 4920, 5330, 6396, 7995, 10660, 12792, 15990, 21320, 31980, 63960, 315977, 631954, 947931, 1263908, 1579885, 1895862, 2527816, 3159770, 3791724, 4107701, 4739655, 6319540, 7583448, 8215402, 9479310, 12323103, 12639080, 12955057, 16430804, 18958620, 20538505, 24646206, 25910114, 32861608, 37917240, 38865171, 41077010, 49292412, 51820228, 61615515, 64775285, 77730342, 82154020, 98584824, 103640456, 123231030, 129550570, 155460684, 164308040, 168415741, 194325855, 246462060, 259101140, 310921368, 336831482, 388651710, 492924120, 505247223, 518202280, 673662964, 777303420, 842078705, 1010494446, 1347325928, 1554606840, 1684157410, 2020988892, 2526236115, 3368314820, 4041977784, 5052472230, 6736629640, 10104944460, 20209888920]

約数ペア:

[(1, 20209888920), (2, 10104944460), (3, 6736629640), (4, 5052472230), (5, 4041977784), (6, 3368314820), (8, 2526236115), (10, 2020988892), (12, 1684157410), (13, 1554606840), (15, 1347325928), (20, 1010494446), (24, 842078705), (26, 777303420), (30, 673662964), (39, 518202280), (40, 505247223), (41, 492924120), (52, 388651710), (60, 336831482), (65, 310921368), (78, 259101140), (82, 246462060), (104, 194325855), (120, 168415741), (123, 164308040), (130, 155460684), (156, 129550570), (164, 123231030), (195, 103640456), (205, 98584824), (246, 82154020), (260, 77730342), (312, 64775285), (328, 61615515), (390, 51820228), (410, 49292412), (492, 41077010), (520, 38865171), (533, 37917240), (615, 32861608), (780, 25910114), (820, 24646206), (984, 20538505), (1066, 18958620), (1230, 16430804), (1560, 12955057), (1599, 12639080), (1640, 12323103), (2132, 9479310), (2460, 8215402), (2665, 7583448), (3198, 6319540), (4264, 4739655), (4920, 4107701), (5330, 3791724), (6396, 3159770), (7995, 2527816), (10660, 1895862), (12792, 1579885), (15990, 1263908), (21320, 947931), (31980, 631954), (63960, 315977)]