201520020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:334

約数の個数: 192

約数和(自身を含む): 650280960

約数和(自身を除く): 448760940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 47, 52, 60, 65, 69, 78, 92, 94, 115, 130, 138, 141, 156, 188, 195, 230, 235, 239, 260, 276, 282, 299, 345, 390, 460, 470, 478, 564, 598, 611, 690, 705, 717, 780, 897, 940, 956, 1081, 1195, 1196, 1222, 1380, 1410, 1434, 1495, 1794, 1833, 2162, 2390, 2444, 2820, 2868, 2990, 3055, 3107, 3243, 3585, 3588, 3666, 4324, 4485, 4780, 5405, 5497, 5980, 6110, 6214, 6486, 7170, 7332, 8970, 9165, 9321, 10810, 10994, 11233, 12220, 12428, 12972, 14053, 14340, 15535, 16215, 16491, 17940, 18330, 18642, 21620, 21988, 22466, 27485, 28106, 31070, 32430, 32982, 33699, 36660, 37284, 42159, 44932, 46605, 54970, 56165, 56212, 62140, 64860, 65964, 67398, 70265, 71461, 82455, 84318, 93210, 109940, 112330, 134796, 140530, 142922, 146029, 164910, 168495, 168636, 186420, 210795, 214383, 224660, 258359, 281060, 285844, 292058, 329820, 336990, 357305, 421590, 428766, 438087, 516718, 584116, 673980, 714610, 730145, 775077, 843180, 857532, 876174, 1033436, 1071915, 1291795, 1429220, 1460290, 1550154, 1752348, 2143830, 2190435, 2583590, 2920580, 3100308, 3358667, 3875385, 4287660, 4380870, 5167180, 6717334, 7750770, 8761740, 10076001, 13434668, 15501540, 16793335, 20152002, 33586670, 40304004, 50380005, 67173340, 100760010, 201520020]

約数ペア:

[(1, 201520020), (2, 100760010), (3, 67173340), (4, 50380005), (5, 40304004), (6, 33586670), (10, 20152002), (12, 16793335), (13, 15501540), (15, 13434668), (20, 10076001), (23, 8761740), (26, 7750770), (30, 6717334), (39, 5167180), (46, 4380870), (47, 4287660), (52, 3875385), (60, 3358667), (65, 3100308), (69, 2920580), (78, 2583590), (92, 2190435), (94, 2143830), (115, 1752348), (130, 1550154), (138, 1460290), (141, 1429220), (156, 1291795), (188, 1071915), (195, 1033436), (230, 876174), (235, 857532), (239, 843180), (260, 775077), (276, 730145), (282, 714610), (299, 673980), (345, 584116), (390, 516718), (460, 438087), (470, 428766), (478, 421590), (564, 357305), (598, 336990), (611, 329820), (690, 292058), (705, 285844), (717, 281060), (780, 258359), (897, 224660), (940, 214383), (956, 210795), (1081, 186420), (1195, 168636), (1196, 168495), (1222, 164910), (1380, 146029), (1410, 142922), (1434, 140530), (1495, 134796), (1794, 112330), (1833, 109940), (2162, 93210), (2390, 84318), (2444, 82455), (2820, 71461), (2868, 70265), (2990, 67398), (3055, 65964), (3107, 64860), (3243, 62140), (3585, 56212), (3588, 56165), (3666, 54970), (4324, 46605), (4485, 44932), (4780, 42159), (5405, 37284), (5497, 36660), (5980, 33699), (6110, 32982), (6214, 32430), (6486, 31070), (7170, 28106), (7332, 27485), (8970, 22466), (9165, 21988), (9321, 21620), (10810, 18642), (10994, 18330), (11233, 17940), (12220, 16491), (12428, 16215), (12972, 15535), (14053, 14340)]