19500780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1087}}^1$

素因数の和:1135

約数の個数: 96

約数和(自身を含む): 61415424

約数和(自身を除く): 41914644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1087, 1196, 1380, 1495, 1794, 2174, 2990, 3261, 3588, 4348, 4485, 5435, 5980, 6522, 8970, 10870, 13044, 14131, 16305, 17940, 21740, 25001, 28262, 32610, 42393, 50002, 56524, 65220, 70655, 75003, 84786, 100004, 125005, 141310, 150006, 169572, 211965, 250010, 282620, 300012, 325013, 375015, 423930, 500020, 650026, 750030, 847860, 975039, 1300052, 1500060, 1625065, 1950078, 3250130, 3900156, 4875195, 6500260, 9750390, 19500780]

約数ペア:

[(1, 19500780), (2, 9750390), (3, 6500260), (4, 4875195), (5, 3900156), (6, 3250130), (10, 1950078), (12, 1625065), (13, 1500060), (15, 1300052), (20, 975039), (23, 847860), (26, 750030), (30, 650026), (39, 500020), (46, 423930), (52, 375015), (60, 325013), (65, 300012), (69, 282620), (78, 250010), (92, 211965), (115, 169572), (130, 150006), (138, 141310), (156, 125005), (195, 100004), (230, 84786), (260, 75003), (276, 70655), (299, 65220), (345, 56524), (390, 50002), (460, 42393), (598, 32610), (690, 28262), (780, 25001), (897, 21740), (1087, 17940), (1196, 16305), (1380, 14131), (1495, 13044), (1794, 10870), (2174, 8970), (2990, 6522), (3261, 5980), (3588, 5435), (4348, 4485)]