30781890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 82684800

約数和(自身を除く): 51902910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 173, 270, 346, 519, 659, 865, 1038, 1318, 1557, 1730, 1977, 2595, 3114, 3295, 3954, 4671, 5190, 5931, 6590, 7785, 9342, 9885, 11862, 15570, 17793, 19770, 23355, 29655, 35586, 46710, 59310, 88965, 114007, 177930, 228014, 342021, 570035, 684042, 1026063, 1140070, 1710105, 2052126, 3078189, 3420210, 5130315, 6156378, 10260630, 15390945, 30781890]

約数ペア:

[(1, 30781890), (2, 15390945), (3, 10260630), (5, 6156378), (6, 5130315), (9, 3420210), (10, 3078189), (15, 2052126), (18, 1710105), (27, 1140070), (30, 1026063), (45, 684042), (54, 570035), (90, 342021), (135, 228014), (173, 177930), (270, 114007), (346, 88965), (519, 59310), (659, 46710), (865, 35586), (1038, 29655), (1318, 23355), (1557, 19770), (1730, 17793), (1977, 15570), (2595, 11862), (3114, 9885), (3295, 9342), (3954, 7785), (4671, 6590), (5190, 5931)]