21781769040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{311881}}^1$

素因数の和:311997

約数の個数: 120

約数和(自身を含む): 73904806248

約数和(自身を除く): 52123037208

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 97, 120, 144, 180, 194, 240, 291, 360, 388, 485, 582, 720, 776, 873, 970, 1164, 1455, 1552, 1746, 1940, 2328, 2910, 3492, 3880, 4365, 4656, 5820, 6984, 7760, 8730, 11640, 13968, 17460, 23280, 34920, 69840, 311881, 623762, 935643, 1247524, 1559405, 1871286, 2495048, 2806929, 3118810, 3742572, 4678215, 4990096, 5613858, 6237620, 7485144, 9356430, 11227716, 12475240, 14034645, 14970288, 18712860, 22455432, 24950480, 28069290, 30252457, 37425720, 44910864, 56138580, 60504914, 74851440, 90757371, 112277160, 121009828, 151262285, 181514742, 224554320, 242019656, 272272113, 302524570, 363029484, 453786855, 484039312, 544544226, 605049140, 726058968, 907573710, 1089088452, 1210098280, 1361360565, 1452117936, 1815147420, 2178176904, 2420196560, 2722721130, 3630294840, 4356353808, 5445442260, 7260589680, 10890884520, 21781769040]

約数ペア:

[(1, 21781769040), (2, 10890884520), (3, 7260589680), (4, 5445442260), (5, 4356353808), (6, 3630294840), (8, 2722721130), (9, 2420196560), (10, 2178176904), (12, 1815147420), (15, 1452117936), (16, 1361360565), (18, 1210098280), (20, 1089088452), (24, 907573710), (30, 726058968), (36, 605049140), (40, 544544226), (45, 484039312), (48, 453786855), (60, 363029484), (72, 302524570), (80, 272272113), (90, 242019656), (97, 224554320), (120, 181514742), (144, 151262285), (180, 121009828), (194, 112277160), (240, 90757371), (291, 74851440), (360, 60504914), (388, 56138580), (485, 44910864), (582, 37425720), (720, 30252457), (776, 28069290), (873, 24950480), (970, 22455432), (1164, 18712860), (1455, 14970288), (1552, 14034645), (1746, 12475240), (1940, 11227716), (2328, 9356430), (2910, 7485144), (3492, 6237620), (3880, 5613858), (4365, 4990096), (4656, 4678215), (5820, 3742572), (6984, 3118810), (7760, 2806929), (8730, 2495048), (11640, 1871286), (13968, 1559405), (17460, 1247524), (23280, 935643), (34920, 623762), (69840, 311881)]