201981520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 540277920

約数和(自身を除く): 338296400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 37, 40, 52, 58, 65, 74, 80, 104, 116, 130, 145, 148, 181, 185, 208, 232, 260, 290, 296, 362, 370, 377, 464, 481, 520, 580, 592, 724, 740, 754, 905, 962, 1040, 1073, 1160, 1448, 1480, 1508, 1810, 1885, 1924, 2146, 2320, 2353, 2405, 2896, 2960, 3016, 3620, 3770, 3848, 4292, 4706, 4810, 5249, 5365, 6032, 6697, 7240, 7540, 7696, 8584, 9412, 9620, 10498, 10730, 11765, 13394, 13949, 14480, 15080, 17168, 18824, 19240, 20996, 21460, 23530, 26245, 26788, 27898, 30160, 33485, 37648, 38480, 41992, 42920, 47060, 52490, 53576, 55796, 66970, 68237, 69745, 83984, 85840, 87061, 94120, 104980, 107152, 111592, 133940, 136474, 139490, 174122, 188240, 194213, 209960, 223184, 267880, 272948, 278980, 341185, 348244, 388426, 419920, 435305, 535760, 545896, 557960, 682370, 696488, 776852, 870610, 971065, 1091792, 1115920, 1364740, 1392976, 1553704, 1741220, 1942130, 2524769, 2729480, 3107408, 3482440, 3884260, 5049538, 5458960, 6964880, 7768520, 10099076, 12623845, 15537040, 20198152, 25247690, 40396304, 50495380, 100990760, 201981520]

約数ペア:

[(1, 201981520), (2, 100990760), (4, 50495380), (5, 40396304), (8, 25247690), (10, 20198152), (13, 15537040), (16, 12623845), (20, 10099076), (26, 7768520), (29, 6964880), (37, 5458960), (40, 5049538), (52, 3884260), (58, 3482440), (65, 3107408), (74, 2729480), (80, 2524769), (104, 1942130), (116, 1741220), (130, 1553704), (145, 1392976), (148, 1364740), (181, 1115920), (185, 1091792), (208, 971065), (232, 870610), (260, 776852), (290, 696488), (296, 682370), (362, 557960), (370, 545896), (377, 535760), (464, 435305), (481, 419920), (520, 388426), (580, 348244), (592, 341185), (724, 278980), (740, 272948), (754, 267880), (905, 223184), (962, 209960), (1040, 194213), (1073, 188240), (1160, 174122), (1448, 139490), (1480, 136474), (1508, 133940), (1810, 111592), (1885, 107152), (1924, 104980), (2146, 94120), (2320, 87061), (2353, 85840), (2405, 83984), (2896, 69745), (2960, 68237), (3016, 66970), (3620, 55796), (3770, 53576), (3848, 52490), (4292, 47060), (4706, 42920), (4810, 41992), (5249, 38480), (5365, 37648), (6032, 33485), (6697, 30160), (7240, 27898), (7540, 26788), (7696, 26245), (8584, 23530), (9412, 21460), (9620, 20996), (10498, 19240), (10730, 18824), (11765, 17168), (13394, 15080), (13949, 14480)]