987406680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1373}}^1$

素因数の和:1861

約数の個数: 128

約数和(自身を含む): 3199331520

約数和(自身を除く): 2211924840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 461, 520, 780, 922, 1373, 1383, 1560, 1844, 2305, 2746, 2766, 3688, 4119, 4610, 5492, 5532, 5993, 6865, 6915, 8238, 9220, 10984, 11064, 11986, 13730, 13830, 16476, 17849, 17979, 18440, 20595, 23972, 27460, 27660, 29965, 32952, 35698, 35958, 41190, 47944, 53547, 54920, 55320, 59930, 71396, 71916, 82380, 89245, 89895, 107094, 119860, 142792, 143832, 164760, 178490, 179790, 214188, 239720, 267735, 356980, 359580, 428376, 535470, 632953, 713960, 719160, 1070940, 1265906, 1898859, 2141880, 2531812, 3164765, 3797718, 5063624, 6329530, 7595436, 8228389, 9494295, 12659060, 15190872, 16456778, 18988590, 24685167, 25318120, 32913556, 37977180, 41141945, 49370334, 65827112, 75954360, 82283890, 98740668, 123425835, 164567780, 197481336, 246851670, 329135560, 493703340, 987406680]

約数ペア:

[(1, 987406680), (2, 493703340), (3, 329135560), (4, 246851670), (5, 197481336), (6, 164567780), (8, 123425835), (10, 98740668), (12, 82283890), (13, 75954360), (15, 65827112), (20, 49370334), (24, 41141945), (26, 37977180), (30, 32913556), (39, 25318120), (40, 24685167), (52, 18988590), (60, 16456778), (65, 15190872), (78, 12659060), (104, 9494295), (120, 8228389), (130, 7595436), (156, 6329530), (195, 5063624), (260, 3797718), (312, 3164765), (390, 2531812), (461, 2141880), (520, 1898859), (780, 1265906), (922, 1070940), (1373, 719160), (1383, 713960), (1560, 632953), (1844, 535470), (2305, 428376), (2746, 359580), (2766, 356980), (3688, 267735), (4119, 239720), (4610, 214188), (5492, 179790), (5532, 178490), (5993, 164760), (6865, 143832), (6915, 142792), (8238, 119860), (9220, 107094), (10984, 89895), (11064, 89245), (11986, 82380), (13730, 71916), (13830, 71396), (16476, 59930), (17849, 55320), (17979, 54920), (18440, 53547), (20595, 47944), (23972, 41190), (27460, 35958), (27660, 35698), (29965, 32952)]