15531880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 45722880

約数和(自身を除く): 30191000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 251, 260, 280, 340, 364, 442, 455, 476, 502, 520, 595, 680, 728, 884, 910, 952, 1004, 1105, 1190, 1255, 1547, 1757, 1768, 1820, 2008, 2210, 2380, 2510, 3094, 3263, 3514, 3640, 4267, 4420, 4760, 5020, 6188, 6526, 7028, 7735, 8534, 8785, 8840, 10040, 12376, 13052, 14056, 15470, 16315, 17068, 17570, 21335, 22841, 26104, 29869, 30940, 32630, 34136, 35140, 42670, 45682, 55471, 59738, 61880, 65260, 70280, 85340, 91364, 110942, 114205, 119476, 130520, 149345, 170680, 182728, 221884, 228410, 238952, 277355, 298690, 388297, 443768, 456820, 554710, 597380, 776594, 913640, 1109420, 1194760, 1553188, 1941485, 2218840, 3106376, 3882970, 7765940, 15531880]

約数ペア:

[(1, 15531880), (2, 7765940), (4, 3882970), (5, 3106376), (7, 2218840), (8, 1941485), (10, 1553188), (13, 1194760), (14, 1109420), (17, 913640), (20, 776594), (26, 597380), (28, 554710), (34, 456820), (35, 443768), (40, 388297), (52, 298690), (56, 277355), (65, 238952), (68, 228410), (70, 221884), (85, 182728), (91, 170680), (104, 149345), (119, 130520), (130, 119476), (136, 114205), (140, 110942), (170, 91364), (182, 85340), (221, 70280), (238, 65260), (251, 61880), (260, 59738), (280, 55471), (340, 45682), (364, 42670), (442, 35140), (455, 34136), (476, 32630), (502, 30940), (520, 29869), (595, 26104), (680, 22841), (728, 21335), (884, 17570), (910, 17068), (952, 16315), (1004, 15470), (1105, 14056), (1190, 13052), (1255, 12376), (1547, 10040), (1757, 8840), (1768, 8785), (1820, 8534), (2008, 7735), (2210, 7028), (2380, 6526), (2510, 6188), (3094, 5020), (3263, 4760), (3514, 4420), (3640, 4267)]