21337367080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2\times {\mathrm{5113}}^1$

素因数の和:5196

約数の個数: 144

約数和(自身を含む): 53835231420

約数和(自身を除く): 32497864340

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 289, 323, 340, 361, 380, 578, 646, 680, 722, 760, 1156, 1292, 1444, 1445, 1615, 1805, 2312, 2584, 2888, 2890, 3230, 3610, 5113, 5491, 5780, 6137, 6460, 7220, 10226, 10982, 11560, 12274, 12920, 14440, 20452, 21964, 24548, 25565, 27455, 30685, 40904, 43928, 49096, 51130, 54910, 61370, 86921, 97147, 102260, 104329, 109820, 122740, 173842, 194294, 204520, 208658, 219640, 245480, 347684, 388588, 417316, 434605, 485735, 521645, 695368, 777176, 834632, 869210, 971470, 1043290, 1477657, 1651499, 1738420, 1845793, 1942940, 2086580, 2955314, 3302998, 3476840, 3691586, 3885880, 4173160, 5910628, 6605996, 7383172, 7388285, 8257495, 9228965, 11821256, 13211992, 14766344, 14776570, 16514990, 18457930, 28075483, 29553140, 31378481, 33029980, 36915860, 56150966, 59106280, 62756962, 66059960, 73831720, 112301932, 125513924, 140377415, 156892405, 224603864, 251027848, 280754830, 313784810, 533434177, 561509660, 627569620, 1066868354, 1123019320, 1255139240, 2133736708, 2667170885, 4267473416, 5334341770, 10668683540, 21337367080]

約数ペア:

[(1, 21337367080), (2, 10668683540), (4, 5334341770), (5, 4267473416), (8, 2667170885), (10, 2133736708), (17, 1255139240), (19, 1123019320), (20, 1066868354), (34, 627569620), (38, 561509660), (40, 533434177), (68, 313784810), (76, 280754830), (85, 251027848), (95, 224603864), (136, 156892405), (152, 140377415), (170, 125513924), (190, 112301932), (289, 73831720), (323, 66059960), (340, 62756962), (361, 59106280), (380, 56150966), (578, 36915860), (646, 33029980), (680, 31378481), (722, 29553140), (760, 28075483), (1156, 18457930), (1292, 16514990), (1444, 14776570), (1445, 14766344), (1615, 13211992), (1805, 11821256), (2312, 9228965), (2584, 8257495), (2888, 7388285), (2890, 7383172), (3230, 6605996), (3610, 5910628), (5113, 4173160), (5491, 3885880), (5780, 3691586), (6137, 3476840), (6460, 3302998), (7220, 2955314), (10226, 2086580), (10982, 1942940), (11560, 1845793), (12274, 1738420), (12920, 1651499), (14440, 1477657), (20452, 1043290), (21964, 971470), (24548, 869210), (25565, 834632), (27455, 777176), (30685, 695368), (40904, 521645), (43928, 485735), (49096, 434605), (51130, 417316), (54910, 388588), (61370, 347684), (86921, 245480), (97147, 219640), (102260, 208658), (104329, 204520), (109820, 194294), (122740, 173842)]