64457680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 182845440

約数和(自身を除く): 118387760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 47, 56, 62, 70, 79, 80, 94, 112, 124, 140, 155, 158, 188, 217, 235, 248, 280, 310, 316, 329, 376, 395, 434, 470, 496, 553, 560, 620, 632, 658, 752, 790, 868, 940, 1085, 1106, 1240, 1264, 1316, 1457, 1580, 1645, 1736, 1880, 2170, 2212, 2449, 2480, 2632, 2765, 2914, 3160, 3290, 3472, 3713, 3760, 4340, 4424, 4898, 5264, 5530, 5828, 6320, 6580, 7285, 7426, 8680, 8848, 9796, 10199, 11060, 11656, 12245, 13160, 14570, 14852, 17143, 17360, 18565, 19592, 20398, 22120, 23312, 24490, 25991, 26320, 29140, 29704, 34286, 37130, 39184, 40796, 44240, 48980, 50995, 51982, 58280, 59408, 68572, 74260, 81592, 85715, 97960, 101990, 103964, 115103, 116560, 129955, 137144, 148520, 163184, 171430, 195920, 203980, 207928, 230206, 259910, 274288, 297040, 342860, 407960, 415856, 460412, 519820, 575515, 685720, 805721, 815920, 920824, 1039640, 1151030, 1371440, 1611442, 1841648, 2079280, 2302060, 3222884, 4028605, 4604120, 6445768, 8057210, 9208240, 12891536, 16114420, 32228840, 64457680]

約数ペア:

[(1, 64457680), (2, 32228840), (4, 16114420), (5, 12891536), (7, 9208240), (8, 8057210), (10, 6445768), (14, 4604120), (16, 4028605), (20, 3222884), (28, 2302060), (31, 2079280), (35, 1841648), (40, 1611442), (47, 1371440), (56, 1151030), (62, 1039640), (70, 920824), (79, 815920), (80, 805721), (94, 685720), (112, 575515), (124, 519820), (140, 460412), (155, 415856), (158, 407960), (188, 342860), (217, 297040), (235, 274288), (248, 259910), (280, 230206), (310, 207928), (316, 203980), (329, 195920), (376, 171430), (395, 163184), (434, 148520), (470, 137144), (496, 129955), (553, 116560), (560, 115103), (620, 103964), (632, 101990), (658, 97960), (752, 85715), (790, 81592), (868, 74260), (940, 68572), (1085, 59408), (1106, 58280), (1240, 51982), (1264, 50995), (1316, 48980), (1457, 44240), (1580, 40796), (1645, 39184), (1736, 37130), (1880, 34286), (2170, 29704), (2212, 29140), (2449, 26320), (2480, 25991), (2632, 24490), (2765, 23312), (2914, 22120), (3160, 20398), (3290, 19592), (3472, 18565), (3713, 17360), (3760, 17143), (4340, 14852), (4424, 14570), (4898, 13160), (5264, 12245), (5530, 11656), (5828, 11060), (6320, 10199), (6580, 9796), (7285, 8848), (7426, 8680)]