157998420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 499000320

約数和(自身を除く): 341001900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 79, 82, 90, 123, 158, 164, 180, 205, 237, 246, 271, 316, 369, 395, 410, 474, 492, 542, 615, 711, 738, 790, 813, 820, 948, 1084, 1185, 1230, 1355, 1422, 1476, 1580, 1626, 1845, 2370, 2439, 2460, 2710, 2844, 3239, 3252, 3555, 3690, 4065, 4740, 4878, 5420, 6478, 7110, 7380, 8130, 9717, 9756, 11111, 12195, 12956, 14220, 16195, 16260, 19434, 21409, 22222, 24390, 29151, 32390, 33333, 38868, 42818, 44444, 48585, 48780, 55555, 58302, 64227, 64780, 66666, 85636, 97170, 99999, 107045, 111110, 116604, 128454, 133332, 145755, 166665, 192681, 194340, 199998, 214090, 222220, 256908, 291510, 321135, 333330, 385362, 399996, 428180, 499995, 583020, 642270, 666660, 770724, 877769, 963405, 999990, 1284540, 1755538, 1926810, 1999980, 2633307, 3511076, 3853620, 4388845, 5266614, 7899921, 8777690, 10533228, 13166535, 15799842, 17555380, 26333070, 31599684, 39499605, 52666140, 78999210, 157998420]

約数ペア:

[(1, 157998420), (2, 78999210), (3, 52666140), (4, 39499605), (5, 31599684), (6, 26333070), (9, 17555380), (10, 15799842), (12, 13166535), (15, 10533228), (18, 8777690), (20, 7899921), (30, 5266614), (36, 4388845), (41, 3853620), (45, 3511076), (60, 2633307), (79, 1999980), (82, 1926810), (90, 1755538), (123, 1284540), (158, 999990), (164, 963405), (180, 877769), (205, 770724), (237, 666660), (246, 642270), (271, 583020), (316, 499995), (369, 428180), (395, 399996), (410, 385362), (474, 333330), (492, 321135), (542, 291510), (615, 256908), (711, 222220), (738, 214090), (790, 199998), (813, 194340), (820, 192681), (948, 166665), (1084, 145755), (1185, 133332), (1230, 128454), (1355, 116604), (1422, 111110), (1476, 107045), (1580, 99999), (1626, 97170), (1845, 85636), (2370, 66666), (2439, 64780), (2460, 64227), (2710, 58302), (2844, 55555), (3239, 48780), (3252, 48585), (3555, 44444), (3690, 42818), (4065, 38868), (4740, 33333), (4878, 32390), (5420, 29151), (6478, 24390), (7110, 22222), (7380, 21409), (8130, 19434), (9717, 16260), (9756, 16195), (11111, 14220), (12195, 12956)]