20358240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 192

約数和(自身を含む): 75188736

約数和(自身を除く): 54830496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 73, 80, 83, 84, 96, 105, 112, 120, 140, 146, 160, 166, 168, 210, 219, 224, 240, 249, 280, 292, 332, 336, 365, 415, 420, 438, 480, 498, 511, 560, 581, 584, 664, 672, 730, 830, 840, 876, 996, 1022, 1095, 1120, 1162, 1168, 1245, 1328, 1460, 1533, 1660, 1680, 1743, 1752, 1992, 2044, 2190, 2324, 2336, 2490, 2555, 2656, 2905, 2920, 3066, 3320, 3360, 3486, 3504, 3984, 4088, 4380, 4648, 4980, 5110, 5810, 5840, 6059, 6132, 6640, 6972, 7008, 7665, 7968, 8176, 8715, 8760, 9296, 9960, 10220, 11620, 11680, 12118, 12264, 13280, 13944, 15330, 16352, 17430, 17520, 18177, 18592, 19920, 20440, 23240, 24236, 24528, 27888, 30295, 30660, 34860, 35040, 36354, 39840, 40880, 42413, 46480, 48472, 49056, 55776, 60590, 61320, 69720, 72708, 81760, 84826, 90885, 92960, 96944, 121180, 122640, 127239, 139440, 145416, 169652, 181770, 193888, 212065, 242360, 245280, 254478, 278880, 290832, 339304, 363540, 424130, 484720, 508956, 581664, 636195, 678608, 727080, 848260, 969440, 1017912, 1272390, 1357216, 1454160, 1696520, 2035824, 2544780, 2908320, 3393040, 4071648, 5089560, 6786080, 10179120, 20358240]

約数ペア:

[(1, 20358240), (2, 10179120), (3, 6786080), (4, 5089560), (5, 4071648), (6, 3393040), (7, 2908320), (8, 2544780), (10, 2035824), (12, 1696520), (14, 1454160), (15, 1357216), (16, 1272390), (20, 1017912), (21, 969440), (24, 848260), (28, 727080), (30, 678608), (32, 636195), (35, 581664), (40, 508956), (42, 484720), (48, 424130), (56, 363540), (60, 339304), (70, 290832), (73, 278880), (80, 254478), (83, 245280), (84, 242360), (96, 212065), (105, 193888), (112, 181770), (120, 169652), (140, 145416), (146, 139440), (160, 127239), (166, 122640), (168, 121180), (210, 96944), (219, 92960), (224, 90885), (240, 84826), (249, 81760), (280, 72708), (292, 69720), (332, 61320), (336, 60590), (365, 55776), (415, 49056), (420, 48472), (438, 46480), (480, 42413), (498, 40880), (511, 39840), (560, 36354), (581, 35040), (584, 34860), (664, 30660), (672, 30295), (730, 27888), (830, 24528), (840, 24236), (876, 23240), (996, 20440), (1022, 19920), (1095, 18592), (1120, 18177), (1162, 17520), (1168, 17430), (1245, 16352), (1328, 15330), (1460, 13944), (1533, 13280), (1660, 12264), (1680, 12118), (1743, 11680), (1752, 11620), (1992, 10220), (2044, 9960), (2190, 9296), (2324, 8760), (2336, 8715), (2490, 8176), (2555, 7968), (2656, 7665), (2905, 7008), (2920, 6972), (3066, 6640), (3320, 6132), (3360, 6059), (3486, 5840), (3504, 5810), (3984, 5110), (4088, 4980), (4380, 4648)]