157899520

素因数分解:

$2^8\times 5^1\times {\mathrm{281}}^1\times {\mathrm{439}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 380429280

約数和(自身を除く): 222529760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 281, 320, 439, 562, 640, 878, 1124, 1280, 1405, 1756, 2195, 2248, 2810, 3512, 4390, 4496, 5620, 7024, 8780, 8992, 11240, 14048, 17560, 17984, 22480, 28096, 35120, 35968, 44960, 56192, 70240, 71936, 89920, 112384, 123359, 140480, 179840, 246718, 280960, 359680, 493436, 561920, 616795, 986872, 1233590, 1973744, 2467180, 3947488, 4934360, 7894976, 9868720, 15789952, 19737440, 31579904, 39474880, 78949760, 157899520]

約数ペア:

[(1, 157899520), (2, 78949760), (4, 39474880), (5, 31579904), (8, 19737440), (10, 15789952), (16, 9868720), (20, 7894976), (32, 4934360), (40, 3947488), (64, 2467180), (80, 1973744), (128, 1233590), (160, 986872), (256, 616795), (281, 561920), (320, 493436), (439, 359680), (562, 280960), (640, 246718), (878, 179840), (1124, 140480), (1280, 123359), (1405, 112384), (1756, 89920), (2195, 71936), (2248, 70240), (2810, 56192), (3512, 44960), (4390, 35968), (4496, 35120), (5620, 28096), (7024, 22480), (8780, 17984), (8992, 17560), (11240, 14048)]