388889416

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^2$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 824091570

約数和(自身を除く): 435202154

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 89, 136, 152, 178, 323, 356, 361, 646, 712, 722, 1292, 1444, 1513, 1691, 2584, 2888, 3026, 3382, 6052, 6137, 6764, 7921, 12104, 12274, 13528, 15842, 24548, 28747, 31684, 32129, 49096, 57494, 63368, 64258, 114988, 128516, 134657, 150499, 229976, 257032, 269314, 300998, 538628, 546193, 601996, 1077256, 1092386, 1203992, 2184772, 2558483, 2859481, 4369544, 5116966, 5718962, 10233932, 11437924, 20467864, 22875848, 48611177, 97222354, 194444708, 388889416]

約数ペア:

[(1, 388889416), (2, 194444708), (4, 97222354), (8, 48611177), (17, 22875848), (19, 20467864), (34, 11437924), (38, 10233932), (68, 5718962), (76, 5116966), (89, 4369544), (136, 2859481), (152, 2558483), (178, 2184772), (323, 1203992), (356, 1092386), (361, 1077256), (646, 601996), (712, 546193), (722, 538628), (1292, 300998), (1444, 269314), (1513, 257032), (1691, 229976), (2584, 150499), (2888, 134657), (3026, 128516), (3382, 114988), (6052, 64258), (6137, 63368), (6764, 57494), (7921, 49096), (12104, 32129), (12274, 31684), (13528, 28747), (15842, 24548)]