289449940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 691488000

約数和(自身を除く): 402038060

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 97, 115, 130, 194, 230, 260, 299, 388, 460, 485, 499, 598, 970, 998, 1196, 1261, 1495, 1940, 1996, 2231, 2495, 2522, 2990, 4462, 4990, 5044, 5980, 6305, 6487, 8924, 9980, 11155, 11477, 12610, 12974, 22310, 22954, 25220, 25948, 29003, 32435, 44620, 45908, 48403, 57385, 58006, 64870, 96806, 114770, 116012, 129740, 145015, 149201, 193612, 229540, 242015, 290030, 298402, 484030, 580060, 596804, 629239, 746005, 968060, 1113269, 1258478, 1492010, 2226538, 2516956, 2984020, 3146195, 4453076, 5566345, 6292390, 11132690, 12584780, 14472497, 22265380, 28944994, 57889988, 72362485, 144724970, 289449940]

約数ペア:

[(1, 289449940), (2, 144724970), (4, 72362485), (5, 57889988), (10, 28944994), (13, 22265380), (20, 14472497), (23, 12584780), (26, 11132690), (46, 6292390), (52, 5566345), (65, 4453076), (92, 3146195), (97, 2984020), (115, 2516956), (130, 2226538), (194, 1492010), (230, 1258478), (260, 1113269), (299, 968060), (388, 746005), (460, 629239), (485, 596804), (499, 580060), (598, 484030), (970, 298402), (998, 290030), (1196, 242015), (1261, 229540), (1495, 193612), (1940, 149201), (1996, 145015), (2231, 129740), (2495, 116012), (2522, 114770), (2990, 96806), (4462, 64870), (4990, 58006), (5044, 57385), (5980, 48403), (6305, 45908), (6487, 44620), (8924, 32435), (9980, 29003), (11155, 25948), (11477, 25220), (12610, 22954), (12974, 22310)]