61861120

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1611

約数の個数: 72

約数和(自身を含む): 153054720

約数和(自身を除く): 91193600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1559, 1984, 2480, 3118, 3968, 4960, 6236, 7795, 7936, 9920, 12472, 15590, 19840, 24944, 31180, 39680, 48329, 49888, 62360, 96658, 99776, 124720, 193316, 199552, 241645, 249440, 386632, 399104, 483290, 498880, 773264, 966580, 997760, 1546528, 1933160, 1995520, 3093056, 3866320, 6186112, 7732640, 12372224, 15465280, 30930560, 61861120]

約数ペア:

[(1, 61861120), (2, 30930560), (4, 15465280), (5, 12372224), (8, 7732640), (10, 6186112), (16, 3866320), (20, 3093056), (31, 1995520), (32, 1933160), (40, 1546528), (62, 997760), (64, 966580), (80, 773264), (124, 498880), (128, 483290), (155, 399104), (160, 386632), (248, 249440), (256, 241645), (310, 199552), (320, 193316), (496, 124720), (620, 99776), (640, 96658), (992, 62360), (1240, 49888), (1280, 48329), (1559, 39680), (1984, 31180), (2480, 24944), (3118, 19840), (3968, 15590), (4960, 12472), (6236, 9920), (7795, 7936)]