309781760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 790390272

約数和(自身を除く): 480608512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 211, 248, 256, 296, 310, 320, 370, 422, 496, 592, 620, 640, 740, 844, 992, 1055, 1147, 1184, 1240, 1280, 1480, 1688, 1984, 2110, 2294, 2368, 2480, 2960, 3376, 3968, 4220, 4588, 4736, 4960, 5735, 5920, 6541, 6752, 7807, 7936, 8440, 9176, 9472, 9920, 11470, 11840, 13082, 13504, 15614, 16880, 18352, 19840, 22940, 23680, 26164, 27008, 31228, 32705, 33760, 36704, 39035, 39680, 45880, 47360, 52328, 54016, 62456, 65410, 67520, 73408, 78070, 91760, 104656, 124912, 130820, 135040, 146816, 156140, 183520, 209312, 242017, 249824, 261640, 270080, 293632, 312280, 367040, 418624, 484034, 499648, 523280, 624560, 734080, 837248, 968068, 999296, 1046560, 1210085, 1249120, 1468160, 1674496, 1936136, 1998592, 2093120, 2420170, 2498240, 3872272, 4186240, 4840340, 4996480, 7744544, 8372480, 9680680, 9992960, 15489088, 19361360, 30978176, 38722720, 61956352, 77445440, 154890880, 309781760]

約数ペア:

[(1, 309781760), (2, 154890880), (4, 77445440), (5, 61956352), (8, 38722720), (10, 30978176), (16, 19361360), (20, 15489088), (31, 9992960), (32, 9680680), (37, 8372480), (40, 7744544), (62, 4996480), (64, 4840340), (74, 4186240), (80, 3872272), (124, 2498240), (128, 2420170), (148, 2093120), (155, 1998592), (160, 1936136), (185, 1674496), (211, 1468160), (248, 1249120), (256, 1210085), (296, 1046560), (310, 999296), (320, 968068), (370, 837248), (422, 734080), (496, 624560), (592, 523280), (620, 499648), (640, 484034), (740, 418624), (844, 367040), (992, 312280), (1055, 293632), (1147, 270080), (1184, 261640), (1240, 249824), (1280, 242017), (1480, 209312), (1688, 183520), (1984, 156140), (2110, 146816), (2294, 135040), (2368, 130820), (2480, 124912), (2960, 104656), (3376, 91760), (3968, 78070), (4220, 73408), (4588, 67520), (4736, 65410), (4960, 62456), (5735, 54016), (5920, 52328), (6541, 47360), (6752, 45880), (7807, 39680), (7936, 39035), (8440, 36704), (9176, 33760), (9472, 32705), (9920, 31228), (11470, 27008), (11840, 26164), (13082, 23680), (13504, 22940), (15614, 19840), (16880, 18352)]