159901720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 427161600

約数和(自身を除く): 267259880

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 110, 124, 152, 155, 190, 209, 220, 248, 310, 341, 380, 418, 440, 589, 617, 620, 682, 760, 836, 1045, 1178, 1234, 1240, 1364, 1672, 1705, 2090, 2356, 2468, 2728, 2945, 3085, 3410, 4180, 4712, 4936, 5890, 6170, 6479, 6787, 6820, 8360, 11723, 11780, 12340, 12958, 13574, 13640, 19127, 23446, 23560, 24680, 25916, 27148, 32395, 33935, 38254, 46892, 51832, 54296, 58615, 64790, 67870, 76508, 93784, 95635, 117230, 128953, 129580, 135740, 153016, 191270, 210397, 234460, 257906, 259160, 271480, 363413, 382540, 420794, 468920, 515812, 644765, 726826, 765080, 841588, 1031624, 1051985, 1289530, 1453652, 1683176, 1817065, 2103970, 2579060, 2907304, 3634130, 3997543, 4207940, 5158120, 7268260, 7995086, 8415880, 14536520, 15990172, 19987715, 31980344, 39975430, 79950860, 159901720]

約数ペア:

[(1, 159901720), (2, 79950860), (4, 39975430), (5, 31980344), (8, 19987715), (10, 15990172), (11, 14536520), (19, 8415880), (20, 7995086), (22, 7268260), (31, 5158120), (38, 4207940), (40, 3997543), (44, 3634130), (55, 2907304), (62, 2579060), (76, 2103970), (88, 1817065), (95, 1683176), (110, 1453652), (124, 1289530), (152, 1051985), (155, 1031624), (190, 841588), (209, 765080), (220, 726826), (248, 644765), (310, 515812), (341, 468920), (380, 420794), (418, 382540), (440, 363413), (589, 271480), (617, 259160), (620, 257906), (682, 234460), (760, 210397), (836, 191270), (1045, 153016), (1178, 135740), (1234, 129580), (1240, 128953), (1364, 117230), (1672, 95635), (1705, 93784), (2090, 76508), (2356, 67870), (2468, 64790), (2728, 58615), (2945, 54296), (3085, 51832), (3410, 46892), (4180, 38254), (4712, 33935), (4936, 32395), (5890, 27148), (6170, 25916), (6479, 24680), (6787, 23560), (6820, 23446), (8360, 19127), (11723, 13640), (11780, 13574), (12340, 12958)]