61917440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:156

約数の個数: 108

約数和(自身を含む): 162381492

約数和(自身を除く): 100464052

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 128, 130, 160, 208, 244, 256, 260, 305, 320, 416, 488, 520, 610, 640, 793, 832, 976, 1040, 1220, 1280, 1586, 1664, 1952, 2080, 2440, 3172, 3328, 3721, 3904, 3965, 4160, 4880, 6344, 7442, 7808, 7930, 8320, 9760, 12688, 14884, 15616, 15860, 16640, 18605, 19520, 25376, 29768, 31720, 37210, 39040, 48373, 50752, 59536, 63440, 74420, 78080, 96746, 101504, 119072, 126880, 148840, 193492, 203008, 238144, 241865, 253760, 297680, 386984, 476288, 483730, 507520, 595360, 773968, 952576, 967460, 1015040, 1190720, 1547936, 1934920, 2381440, 3095872, 3869840, 4762880, 6191744, 7739680, 12383488, 15479360, 30958720, 61917440]

約数ペア:

[(1, 61917440), (2, 30958720), (4, 15479360), (5, 12383488), (8, 7739680), (10, 6191744), (13, 4762880), (16, 3869840), (20, 3095872), (26, 2381440), (32, 1934920), (40, 1547936), (52, 1190720), (61, 1015040), (64, 967460), (65, 952576), (80, 773968), (104, 595360), (122, 507520), (128, 483730), (130, 476288), (160, 386984), (208, 297680), (244, 253760), (256, 241865), (260, 238144), (305, 203008), (320, 193492), (416, 148840), (488, 126880), (520, 119072), (610, 101504), (640, 96746), (793, 78080), (832, 74420), (976, 63440), (1040, 59536), (1220, 50752), (1280, 48373), (1586, 39040), (1664, 37210), (1952, 31720), (2080, 29768), (2440, 25376), (3172, 19520), (3328, 18605), (3721, 16640), (3904, 15860), (3965, 15616), (4160, 14884), (4880, 12688), (6344, 9760), (7442, 8320), (7808, 7930)]