172389760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8689}}^1$

素因数の和:8739

約数の個数: 64

約数和(自身を含む): 425462400

約数和(自身を除く): 253072640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 8689, 9920, 17378, 19840, 34756, 43445, 69512, 86890, 139024, 173780, 269359, 278048, 347560, 538718, 556096, 695120, 1077436, 1112192, 1346795, 1390240, 2154872, 2693590, 2780480, 4309744, 5387180, 5560960, 8619488, 10774360, 17238976, 21548720, 34477952, 43097440, 86194880, 172389760]

約数ペア:

[(1, 172389760), (2, 86194880), (4, 43097440), (5, 34477952), (8, 21548720), (10, 17238976), (16, 10774360), (20, 8619488), (31, 5560960), (32, 5387180), (40, 4309744), (62, 2780480), (64, 2693590), (80, 2154872), (124, 1390240), (128, 1346795), (155, 1112192), (160, 1077436), (248, 695120), (310, 556096), (320, 538718), (496, 347560), (620, 278048), (640, 269359), (992, 173780), (1240, 139024), (1984, 86890), (2480, 69512), (3968, 43445), (4960, 34756), (8689, 19840), (9920, 17378)]