121857280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 313173504

約数和(自身を除く): 191316224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 83, 124, 128, 148, 155, 160, 166, 185, 248, 256, 296, 310, 320, 332, 370, 415, 496, 592, 620, 640, 664, 740, 830, 992, 1147, 1184, 1240, 1280, 1328, 1480, 1660, 1984, 2294, 2368, 2480, 2573, 2656, 2960, 3071, 3320, 3968, 4588, 4736, 4960, 5146, 5312, 5735, 5920, 6142, 6640, 7936, 9176, 9472, 9920, 10292, 10624, 11470, 11840, 12284, 12865, 13280, 15355, 18352, 19840, 20584, 21248, 22940, 23680, 24568, 25730, 26560, 30710, 36704, 39680, 41168, 45880, 47360, 49136, 51460, 53120, 61420, 73408, 82336, 91760, 95201, 98272, 102920, 106240, 122840, 146816, 164672, 183520, 190402, 196544, 205840, 245680, 293632, 329344, 367040, 380804, 393088, 411680, 476005, 491360, 658688, 734080, 761608, 786176, 823360, 952010, 982720, 1468160, 1523216, 1646720, 1904020, 1965440, 3046432, 3293440, 3808040, 3930880, 6092864, 7616080, 12185728, 15232160, 24371456, 30464320, 60928640, 121857280]

約数ペア:

[(1, 121857280), (2, 60928640), (4, 30464320), (5, 24371456), (8, 15232160), (10, 12185728), (16, 7616080), (20, 6092864), (31, 3930880), (32, 3808040), (37, 3293440), (40, 3046432), (62, 1965440), (64, 1904020), (74, 1646720), (80, 1523216), (83, 1468160), (124, 982720), (128, 952010), (148, 823360), (155, 786176), (160, 761608), (166, 734080), (185, 658688), (248, 491360), (256, 476005), (296, 411680), (310, 393088), (320, 380804), (332, 367040), (370, 329344), (415, 293632), (496, 245680), (592, 205840), (620, 196544), (640, 190402), (664, 183520), (740, 164672), (830, 146816), (992, 122840), (1147, 106240), (1184, 102920), (1240, 98272), (1280, 95201), (1328, 91760), (1480, 82336), (1660, 73408), (1984, 61420), (2294, 53120), (2368, 51460), (2480, 49136), (2573, 47360), (2656, 45880), (2960, 41168), (3071, 39680), (3320, 36704), (3968, 30710), (4588, 26560), (4736, 25730), (4960, 24568), (5146, 23680), (5312, 22940), (5735, 21248), (5920, 20584), (6142, 19840), (6640, 18352), (7936, 15355), (9176, 13280), (9472, 12865), (9920, 12284), (10292, 11840), (10624, 11470)]