289979820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123923}}^1$

素因数の和:123951

約数の個数: 72

約数和(自身を含む): 947275056

約数和(自身を除く): 657295236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 123923, 247846, 371769, 495692, 619615, 743538, 1115307, 1239230, 1487076, 1610999, 1858845, 2230614, 2478460, 3221998, 3717690, 4461228, 4832997, 5576535, 6443996, 7435380, 8054995, 9665994, 11153070, 14498991, 16109990, 19331988, 22306140, 24164985, 28997982, 32219980, 48329970, 57995964, 72494955, 96659940, 144989910, 289979820]

約数ペア:

[(1, 289979820), (2, 144989910), (3, 96659940), (4, 72494955), (5, 57995964), (6, 48329970), (9, 32219980), (10, 28997982), (12, 24164985), (13, 22306140), (15, 19331988), (18, 16109990), (20, 14498991), (26, 11153070), (30, 9665994), (36, 8054995), (39, 7435380), (45, 6443996), (52, 5576535), (60, 4832997), (65, 4461228), (78, 3717690), (90, 3221998), (117, 2478460), (130, 2230614), (156, 1858845), (180, 1610999), (195, 1487076), (234, 1239230), (260, 1115307), (390, 743538), (468, 619615), (585, 495692), (780, 371769), (1170, 247846), (2340, 123923)]