247917420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 778054368

約数和(自身を除く): 530136948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 67, 90, 122, 134, 180, 183, 201, 244, 268, 305, 335, 337, 366, 402, 549, 603, 610, 670, 674, 732, 804, 915, 1005, 1011, 1098, 1206, 1220, 1340, 1348, 1685, 1830, 2010, 2022, 2196, 2412, 2745, 3015, 3033, 3370, 3660, 4020, 4044, 4087, 5055, 5490, 6030, 6066, 6740, 8174, 10110, 10980, 12060, 12132, 12261, 15165, 16348, 20220, 20435, 20557, 22579, 24522, 30330, 36783, 40870, 41114, 45158, 49044, 60660, 61305, 61671, 67737, 73566, 81740, 82228, 90316, 102785, 112895, 122610, 123342, 135474, 147132, 183915, 185013, 203211, 205570, 225790, 245220, 246684, 270948, 308355, 338685, 367830, 370026, 406422, 411140, 451580, 616710, 677370, 735660, 740052, 812844, 925065, 1016055, 1233420, 1354740, 1377319, 1850130, 2032110, 2754638, 3700260, 4064220, 4131957, 5509276, 6886595, 8263914, 12395871, 13773190, 16527828, 20659785, 24791742, 27546380, 41319570, 49583484, 61979355, 82639140, 123958710, 247917420]

約数ペア:

[(1, 247917420), (2, 123958710), (3, 82639140), (4, 61979355), (5, 49583484), (6, 41319570), (9, 27546380), (10, 24791742), (12, 20659785), (15, 16527828), (18, 13773190), (20, 12395871), (30, 8263914), (36, 6886595), (45, 5509276), (60, 4131957), (61, 4064220), (67, 3700260), (90, 2754638), (122, 2032110), (134, 1850130), (180, 1377319), (183, 1354740), (201, 1233420), (244, 1016055), (268, 925065), (305, 812844), (335, 740052), (337, 735660), (366, 677370), (402, 616710), (549, 451580), (603, 411140), (610, 406422), (670, 370026), (674, 367830), (732, 338685), (804, 308355), (915, 270948), (1005, 246684), (1011, 245220), (1098, 225790), (1206, 205570), (1220, 203211), (1340, 185013), (1348, 183915), (1685, 147132), (1830, 135474), (2010, 123342), (2022, 122610), (2196, 112895), (2412, 102785), (2745, 90316), (3015, 82228), (3033, 81740), (3370, 73566), (3660, 67737), (4020, 61671), (4044, 61305), (4087, 60660), (5055, 49044), (5490, 45158), (6030, 41114), (6066, 40870), (6740, 36783), (8174, 30330), (10110, 24522), (10980, 22579), (12060, 20557), (12132, 20435), (12261, 20220), (15165, 16348)]