20137776880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1731

約数の個数: 160

約数和(自身を含む): 51949800000

約数和(自身を除く): 31812023120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 419, 481, 520, 592, 740, 838, 962, 1040, 1249, 1480, 1676, 1924, 2095, 2405, 2498, 2960, 3352, 3848, 4190, 4810, 4996, 5447, 6245, 6704, 7696, 8380, 9620, 9992, 10894, 12490, 15503, 16237, 16760, 19240, 19984, 21788, 24980, 27235, 31006, 32474, 33520, 38480, 43576, 46213, 49960, 54470, 62012, 64948, 77515, 81185, 87152, 92426, 99920, 108940, 124024, 129896, 155030, 162370, 184852, 201539, 217880, 231065, 248048, 259792, 310060, 324740, 369704, 403078, 435760, 462130, 523331, 600769, 620120, 649480, 739408, 806156, 924260, 1007695, 1046662, 1201538, 1240240, 1298960, 1612312, 1848520, 2015390, 2093324, 2403076, 2616655, 3003845, 3224624, 3697040, 4030780, 4186648, 4806152, 5233310, 6007690, 6803303, 8061560, 8373296, 9612304, 10466620, 12015380, 13606606, 16123120, 19363247, 20933240, 24030760, 27213212, 34016515, 38726494, 41866480, 48061520, 54426424, 68033030, 77452988, 96816235, 108852848, 136066060, 154905976, 193632470, 251722211, 272132120, 309811952, 387264940, 503444422, 544264240, 774529880, 1006888844, 1258611055, 1549059760, 2013777688, 2517222110, 4027555376, 5034444220, 10068888440, 20137776880]

約数ペア:

[(1, 20137776880), (2, 10068888440), (4, 5034444220), (5, 4027555376), (8, 2517222110), (10, 2013777688), (13, 1549059760), (16, 1258611055), (20, 1006888844), (26, 774529880), (37, 544264240), (40, 503444422), (52, 387264940), (65, 309811952), (74, 272132120), (80, 251722211), (104, 193632470), (130, 154905976), (148, 136066060), (185, 108852848), (208, 96816235), (260, 77452988), (296, 68033030), (370, 54426424), (419, 48061520), (481, 41866480), (520, 38726494), (592, 34016515), (740, 27213212), (838, 24030760), (962, 20933240), (1040, 19363247), (1249, 16123120), (1480, 13606606), (1676, 12015380), (1924, 10466620), (2095, 9612304), (2405, 8373296), (2498, 8061560), (2960, 6803303), (3352, 6007690), (3848, 5233310), (4190, 4806152), (4810, 4186648), (4996, 4030780), (5447, 3697040), (6245, 3224624), (6704, 3003845), (7696, 2616655), (8380, 2403076), (9620, 2093324), (9992, 2015390), (10894, 1848520), (12490, 1612312), (15503, 1298960), (16237, 1240240), (16760, 1201538), (19240, 1046662), (19984, 1007695), (21788, 924260), (24980, 806156), (27235, 739408), (31006, 649480), (32474, 620120), (33520, 600769), (38480, 523331), (43576, 462130), (46213, 435760), (49960, 403078), (54470, 369704), (62012, 324740), (64948, 310060), (77515, 259792), (81185, 248048), (87152, 231065), (92426, 217880), (99920, 201539), (108940, 184852), (124024, 162370), (129896, 155030)]