215403760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1047

約数の個数: 160

約数和(自身を含む): 619960320

約数和(自身を除く): 404556560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 130, 143, 152, 176, 190, 208, 209, 220, 247, 260, 286, 304, 380, 418, 440, 494, 520, 572, 715, 760, 836, 880, 988, 991, 1040, 1045, 1144, 1235, 1430, 1520, 1672, 1976, 1982, 2090, 2288, 2470, 2717, 2860, 3344, 3952, 3964, 4180, 4940, 4955, 5434, 5720, 7928, 8360, 9880, 9910, 10868, 10901, 11440, 12883, 13585, 15856, 16720, 18829, 19760, 19820, 21736, 21802, 25766, 27170, 37658, 39640, 43472, 43604, 51532, 54340, 54505, 64415, 75316, 79280, 87208, 94145, 103064, 108680, 109010, 128830, 141713, 150632, 174416, 188290, 206128, 207119, 217360, 218020, 244777, 257660, 283426, 301264, 376580, 414238, 436040, 489554, 515320, 566852, 708565, 753160, 828476, 872080, 979108, 1030640, 1035595, 1133704, 1223885, 1417130, 1506320, 1656952, 1958216, 2071190, 2267408, 2447770, 2692547, 2834260, 3313904, 3916432, 4142380, 4895540, 5385094, 5668520, 8284760, 9791080, 10770188, 11337040, 13462735, 16569520, 19582160, 21540376, 26925470, 43080752, 53850940, 107701880, 215403760]

約数ペア:

[(1, 215403760), (2, 107701880), (4, 53850940), (5, 43080752), (8, 26925470), (10, 21540376), (11, 19582160), (13, 16569520), (16, 13462735), (19, 11337040), (20, 10770188), (22, 9791080), (26, 8284760), (38, 5668520), (40, 5385094), (44, 4895540), (52, 4142380), (55, 3916432), (65, 3313904), (76, 2834260), (80, 2692547), (88, 2447770), (95, 2267408), (104, 2071190), (110, 1958216), (130, 1656952), (143, 1506320), (152, 1417130), (176, 1223885), (190, 1133704), (208, 1035595), (209, 1030640), (220, 979108), (247, 872080), (260, 828476), (286, 753160), (304, 708565), (380, 566852), (418, 515320), (440, 489554), (494, 436040), (520, 414238), (572, 376580), (715, 301264), (760, 283426), (836, 257660), (880, 244777), (988, 218020), (991, 217360), (1040, 207119), (1045, 206128), (1144, 188290), (1235, 174416), (1430, 150632), (1520, 141713), (1672, 128830), (1976, 109010), (1982, 108680), (2090, 103064), (2288, 94145), (2470, 87208), (2717, 79280), (2860, 75316), (3344, 64415), (3952, 54505), (3964, 54340), (4180, 51532), (4940, 43604), (4955, 43472), (5434, 39640), (5720, 37658), (7928, 27170), (8360, 25766), (9880, 21802), (9910, 21736), (10868, 19820), (10901, 19760), (11440, 18829), (12883, 16720), (13585, 15856)]