1921000250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:913

約数の個数: 128

約数和(自身を含む): 4176506880

約数和(自身を除く): 2255506630

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 31, 46, 50, 62, 65, 115, 125, 130, 155, 230, 250, 299, 310, 325, 403, 575, 598, 650, 713, 775, 806, 829, 1150, 1426, 1495, 1550, 1625, 1658, 2015, 2875, 2990, 3250, 3565, 3875, 4030, 4145, 5750, 7130, 7475, 7750, 8290, 9269, 10075, 10777, 14950, 17825, 18538, 19067, 20150, 20725, 21554, 25699, 35650, 37375, 38134, 41450, 46345, 50375, 51398, 53885, 74750, 89125, 92690, 95335, 100750, 103625, 107770, 128495, 178250, 190670, 207250, 231725, 247871, 256990, 269425, 334087, 463450, 476675, 495742, 538850, 591077, 642475, 668174, 953350, 1158625, 1182154, 1239355, 1284950, 1347125, 1670435, 2317250, 2383375, 2478710, 2694250, 2955385, 3212375, 3340870, 4766750, 5910770, 6196775, 6424750, 7684001, 8352175, 12393550, 14776925, 15368002, 16704350, 29553850, 30983875, 38420005, 41760875, 61967750, 73884625, 76840010, 83521750, 147769250, 192100025, 384200050, 960500125, 1921000250]

約数ペア:

[(1, 1921000250), (2, 960500125), (5, 384200050), (10, 192100025), (13, 147769250), (23, 83521750), (25, 76840010), (26, 73884625), (31, 61967750), (46, 41760875), (50, 38420005), (62, 30983875), (65, 29553850), (115, 16704350), (125, 15368002), (130, 14776925), (155, 12393550), (230, 8352175), (250, 7684001), (299, 6424750), (310, 6196775), (325, 5910770), (403, 4766750), (575, 3340870), (598, 3212375), (650, 2955385), (713, 2694250), (775, 2478710), (806, 2383375), (829, 2317250), (1150, 1670435), (1426, 1347125), (1495, 1284950), (1550, 1239355), (1625, 1182154), (1658, 1158625), (2015, 953350), (2875, 668174), (2990, 642475), (3250, 591077), (3565, 538850), (3875, 495742), (4030, 476675), (4145, 463450), (5750, 334087), (7130, 269425), (7475, 256990), (7750, 247871), (8290, 231725), (9269, 207250), (10075, 190670), (10777, 178250), (14950, 128495), (17825, 107770), (18538, 103625), (19067, 100750), (20150, 95335), (20725, 92690), (21554, 89125), (25699, 74750), (35650, 53885), (37375, 51398), (38134, 50375), (41450, 46345)]