1978246020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 192

約数和(自身を含む): 5922201600

約数和(自身を除く): 3943955580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 67, 71, 87, 116, 134, 142, 145, 174, 201, 213, 239, 268, 284, 290, 335, 348, 355, 402, 426, 435, 478, 580, 670, 710, 717, 804, 852, 870, 956, 1005, 1065, 1195, 1340, 1420, 1434, 1740, 1943, 2010, 2059, 2130, 2390, 2868, 3585, 3886, 4020, 4118, 4260, 4757, 4780, 5829, 6177, 6931, 7170, 7772, 8236, 9514, 9715, 10295, 11658, 12354, 13862, 14271, 14340, 16013, 16969, 19028, 19430, 20590, 20793, 23316, 23785, 24708, 27724, 28542, 29145, 30885, 32026, 33938, 34655, 38860, 41180, 41586, 47570, 48039, 50907, 57084, 58290, 61770, 64052, 67876, 69310, 71355, 80065, 83172, 84845, 95140, 96078, 101814, 103965, 116580, 123540, 137953, 138620, 142710, 160130, 169690, 192156, 203628, 207930, 240195, 254535, 275906, 285420, 320260, 339380, 413859, 415860, 464377, 480390, 492101, 509070, 551812, 689765, 827718, 928754, 960780, 984202, 1018140, 1136923, 1379530, 1393131, 1476303, 1655436, 1857508, 1968404, 2069295, 2273846, 2321885, 2460505, 2759060, 2786262, 2952606, 3410769, 4138590, 4547692, 4643770, 4921010, 5572524, 5684615, 5905212, 6821538, 6965655, 7381515, 8277180, 9287540, 9842020, 11369230, 13643076, 13931310, 14763030, 17053845, 22738460, 27862620, 29526060, 32970767, 34107690, 65941534, 68215380, 98912301, 131883068, 164853835, 197824602, 329707670, 395649204, 494561505, 659415340, 989123010, 1978246020]

約数ペア:

[(1, 1978246020), (2, 989123010), (3, 659415340), (4, 494561505), (5, 395649204), (6, 329707670), (10, 197824602), (12, 164853835), (15, 131883068), (20, 98912301), (29, 68215380), (30, 65941534), (58, 34107690), (60, 32970767), (67, 29526060), (71, 27862620), (87, 22738460), (116, 17053845), (134, 14763030), (142, 13931310), (145, 13643076), (174, 11369230), (201, 9842020), (213, 9287540), (239, 8277180), (268, 7381515), (284, 6965655), (290, 6821538), (335, 5905212), (348, 5684615), (355, 5572524), (402, 4921010), (426, 4643770), (435, 4547692), (478, 4138590), (580, 3410769), (670, 2952606), (710, 2786262), (717, 2759060), (804, 2460505), (852, 2321885), (870, 2273846), (956, 2069295), (1005, 1968404), (1065, 1857508), (1195, 1655436), (1340, 1476303), (1420, 1393131), (1434, 1379530), (1740, 1136923), (1943, 1018140), (2010, 984202), (2059, 960780), (2130, 928754), (2390, 827718), (2868, 689765), (3585, 551812), (3886, 509070), (4020, 492101), (4118, 480390), (4260, 464377), (4757, 415860), (4780, 413859), (5829, 339380), (6177, 320260), (6931, 285420), (7170, 275906), (7772, 254535), (8236, 240195), (9514, 207930), (9715, 203628), (10295, 192156), (11658, 169690), (12354, 160130), (13862, 142710), (14271, 138620), (14340, 137953), (16013, 123540), (16969, 116580), (19028, 103965), (19430, 101814), (20590, 96078), (20793, 95140), (23316, 84845), (23785, 83172), (24708, 80065), (27724, 71355), (28542, 69310), (29145, 67876), (30885, 64052), (32026, 61770), (33938, 58290), (34655, 57084), (38860, 50907), (41180, 48039), (41586, 47570)]