20310240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 71850240

約数和(自身を除く): 51540000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 32, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 96, 102, 114, 120, 131, 136, 152, 160, 170, 190, 204, 228, 240, 255, 262, 272, 285, 304, 323, 340, 380, 393, 408, 456, 480, 510, 524, 544, 570, 608, 646, 655, 680, 760, 786, 816, 912, 969, 1020, 1048, 1140, 1292, 1310, 1360, 1520, 1572, 1615, 1632, 1824, 1938, 1965, 2040, 2096, 2227, 2280, 2489, 2584, 2620, 2720, 3040, 3144, 3230, 3876, 3930, 4080, 4192, 4454, 4560, 4845, 4978, 5168, 5240, 6288, 6460, 6681, 7467, 7752, 7860, 8160, 8908, 9120, 9690, 9956, 10336, 10480, 11135, 12445, 12576, 12920, 13362, 14934, 15504, 15720, 17816, 19380, 19912, 20960, 22270, 24890, 25840, 26724, 29868, 31008, 31440, 33405, 35632, 37335, 38760, 39824, 42313, 44540, 49780, 51680, 53448, 59736, 62880, 66810, 71264, 74670, 77520, 79648, 84626, 89080, 99560, 106896, 119472, 126939, 133620, 149340, 155040, 169252, 178160, 199120, 211565, 213792, 238944, 253878, 267240, 298680, 338504, 356320, 398240, 423130, 507756, 534480, 597360, 634695, 677008, 846260, 1015512, 1068960, 1194720, 1269390, 1354016, 1692520, 2031024, 2538780, 3385040, 4062048, 5077560, 6770080, 10155120, 20310240]

約数ペア:

[(1, 20310240), (2, 10155120), (3, 6770080), (4, 5077560), (5, 4062048), (6, 3385040), (8, 2538780), (10, 2031024), (12, 1692520), (15, 1354016), (16, 1269390), (17, 1194720), (19, 1068960), (20, 1015512), (24, 846260), (30, 677008), (32, 634695), (34, 597360), (38, 534480), (40, 507756), (48, 423130), (51, 398240), (57, 356320), (60, 338504), (68, 298680), (76, 267240), (80, 253878), (85, 238944), (95, 213792), (96, 211565), (102, 199120), (114, 178160), (120, 169252), (131, 155040), (136, 149340), (152, 133620), (160, 126939), (170, 119472), (190, 106896), (204, 99560), (228, 89080), (240, 84626), (255, 79648), (262, 77520), (272, 74670), (285, 71264), (304, 66810), (323, 62880), (340, 59736), (380, 53448), (393, 51680), (408, 49780), (456, 44540), (480, 42313), (510, 39824), (524, 38760), (544, 37335), (570, 35632), (608, 33405), (646, 31440), (655, 31008), (680, 29868), (760, 26724), (786, 25840), (816, 24890), (912, 22270), (969, 20960), (1020, 19912), (1048, 19380), (1140, 17816), (1292, 15720), (1310, 15504), (1360, 14934), (1520, 13362), (1572, 12920), (1615, 12576), (1632, 12445), (1824, 11135), (1938, 10480), (1965, 10336), (2040, 9956), (2096, 9690), (2227, 9120), (2280, 8908), (2489, 8160), (2584, 7860), (2620, 7752), (2720, 7467), (3040, 6681), (3144, 6460), (3230, 6288), (3876, 5240), (3930, 5168), (4080, 4978), (4192, 4845), (4454, 4560)]