20173744040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{1327}}^1$

素因数の和:1563

約数の個数: 128

約数和(自身を含む): 47398763520

約数和(自身を除く): 27225019480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 101, 106, 142, 202, 212, 265, 284, 355, 404, 424, 505, 530, 568, 710, 808, 1010, 1060, 1327, 1420, 2020, 2120, 2654, 2840, 3763, 4040, 5308, 5353, 6635, 7171, 7526, 10616, 10706, 13270, 14342, 15052, 18815, 21412, 26540, 26765, 28684, 30104, 35855, 37630, 42824, 53080, 53530, 57368, 70331, 71710, 75260, 94217, 107060, 134027, 140662, 143420, 150520, 188434, 214120, 268054, 281324, 286840, 351655, 376868, 380063, 471085, 536108, 562648, 670135, 703310, 753736, 760126, 942170, 1072216, 1340270, 1406620, 1520252, 1884340, 1900315, 2680540, 2813240, 3040504, 3768680, 3800630, 4993501, 5361080, 7103431, 7601260, 9515917, 9987002, 14206862, 15202520, 19031834, 19974004, 24967505, 28413724, 35517155, 38063668, 39948008, 47579585, 49935010, 56827448, 71034310, 76127336, 95159170, 99870020, 142068620, 190318340, 199740040, 284137240, 380636680, 504343601, 1008687202, 2017374404, 2521718005, 4034748808, 5043436010, 10086872020, 20173744040]

約数ペア:

[(1, 20173744040), (2, 10086872020), (4, 5043436010), (5, 4034748808), (8, 2521718005), (10, 2017374404), (20, 1008687202), (40, 504343601), (53, 380636680), (71, 284137240), (101, 199740040), (106, 190318340), (142, 142068620), (202, 99870020), (212, 95159170), (265, 76127336), (284, 71034310), (355, 56827448), (404, 49935010), (424, 47579585), (505, 39948008), (530, 38063668), (568, 35517155), (710, 28413724), (808, 24967505), (1010, 19974004), (1060, 19031834), (1327, 15202520), (1420, 14206862), (2020, 9987002), (2120, 9515917), (2654, 7601260), (2840, 7103431), (3763, 5361080), (4040, 4993501), (5308, 3800630), (5353, 3768680), (6635, 3040504), (7171, 2813240), (7526, 2680540), (10616, 1900315), (10706, 1884340), (13270, 1520252), (14342, 1406620), (15052, 1340270), (18815, 1072216), (21412, 942170), (26540, 760126), (26765, 753736), (28684, 703310), (30104, 670135), (35855, 562648), (37630, 536108), (42824, 471085), (53080, 380063), (53530, 376868), (57368, 351655), (70331, 286840), (71710, 281324), (75260, 268054), (94217, 214120), (107060, 188434), (134027, 150520), (140662, 143420)]