81376620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2$

素因数の和:97

約数の個数: 216

約数和(自身を含む): 275106384

約数和(自身を除く): 193729764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 19, 20, 26, 30, 34, 38, 39, 51, 52, 57, 60, 65, 68, 76, 78, 85, 95, 102, 114, 130, 156, 170, 190, 195, 204, 221, 228, 247, 255, 260, 285, 289, 323, 340, 361, 380, 390, 442, 494, 510, 570, 578, 646, 663, 722, 741, 780, 867, 884, 969, 988, 1020, 1083, 1105, 1140, 1156, 1235, 1292, 1326, 1444, 1445, 1482, 1615, 1734, 1805, 1938, 2166, 2210, 2470, 2652, 2890, 2964, 3230, 3315, 3468, 3610, 3705, 3757, 3876, 4199, 4332, 4335, 4420, 4693, 4845, 4940, 5415, 5491, 5780, 6137, 6460, 6630, 7220, 7410, 7514, 8398, 8670, 9386, 9690, 10830, 10982, 11271, 12274, 12597, 13260, 14079, 14820, 15028, 16473, 16796, 17340, 18411, 18772, 18785, 19380, 20995, 21660, 21964, 22542, 23465, 24548, 25194, 27455, 28158, 30685, 32946, 36822, 37570, 41990, 45084, 46930, 50388, 54910, 56316, 56355, 61370, 62985, 65892, 70395, 71383, 73644, 75140, 79781, 82365, 83980, 92055, 93860, 104329, 109820, 112710, 122740, 125970, 140790, 142766, 159562, 164730, 184110, 208658, 214149, 225420, 239343, 251940, 281580, 285532, 312987, 319124, 329460, 356915, 368220, 398905, 417316, 428298, 478686, 521645, 625974, 713830, 797810, 856596, 957372, 1043290, 1070745, 1196715, 1251948, 1356277, 1427660, 1564935, 1595620, 2086580, 2141490, 2393430, 2712554, 3129870, 4068831, 4282980, 4786860, 5425108, 6259740, 6781385, 8137662, 13562770, 16275324, 20344155, 27125540, 40688310, 81376620]

約数ペア:

[(1, 81376620), (2, 40688310), (3, 27125540), (4, 20344155), (5, 16275324), (6, 13562770), (10, 8137662), (12, 6781385), (13, 6259740), (15, 5425108), (17, 4786860), (19, 4282980), (20, 4068831), (26, 3129870), (30, 2712554), (34, 2393430), (38, 2141490), (39, 2086580), (51, 1595620), (52, 1564935), (57, 1427660), (60, 1356277), (65, 1251948), (68, 1196715), (76, 1070745), (78, 1043290), (85, 957372), (95, 856596), (102, 797810), (114, 713830), (130, 625974), (156, 521645), (170, 478686), (190, 428298), (195, 417316), (204, 398905), (221, 368220), (228, 356915), (247, 329460), (255, 319124), (260, 312987), (285, 285532), (289, 281580), (323, 251940), (340, 239343), (361, 225420), (380, 214149), (390, 208658), (442, 184110), (494, 164730), (510, 159562), (570, 142766), (578, 140790), (646, 125970), (663, 122740), (722, 112710), (741, 109820), (780, 104329), (867, 93860), (884, 92055), (969, 83980), (988, 82365), (1020, 79781), (1083, 75140), (1105, 73644), (1140, 71383), (1156, 70395), (1235, 65892), (1292, 62985), (1326, 61370), (1444, 56355), (1445, 56316), (1482, 54910), (1615, 50388), (1734, 46930), (1805, 45084), (1938, 41990), (2166, 37570), (2210, 36822), (2470, 32946), (2652, 30685), (2890, 28158), (2964, 27455), (3230, 25194), (3315, 24548), (3468, 23465), (3610, 22542), (3705, 21964), (3757, 21660), (3876, 20995), (4199, 19380), (4332, 18785), (4335, 18772), (4420, 18411), (4693, 17340), (4845, 16796), (4940, 16473), (5415, 15028), (5491, 14820), (5780, 14079), (6137, 13260), (6460, 12597), (6630, 12274), (7220, 11271), (7410, 10982), (7514, 10830), (8398, 9690), (8670, 9386)]