20834976775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 29398118400

約数和(自身を除く): 8563141625

約数列:

[1, 5, 19, 25, 29, 31, 95, 97, 145, 155, 475, 485, 503, 551, 589, 725, 775, 899, 1843, 2425, 2515, 2755, 2813, 2945, 3007, 4495, 9215, 9557, 12575, 13775, 14065, 14587, 14725, 15035, 15593, 17081, 22475, 46075, 47785, 48791, 53447, 57133, 70325, 72935, 75175, 77965, 85405, 87203, 238925, 243955, 267235, 277153, 285665, 296267, 364675, 389825, 427025, 436015, 452197, 927029, 1219775, 1336175, 1385765, 1414939, 1428325, 1481335, 1512521, 1656857, 2180075, 2260985, 4635145, 6928825, 7074695, 7406675, 7562605, 8284285, 8591743, 11304925, 23175725, 26883841, 28737899, 35373475, 37813025, 41421425, 42958715, 43863109, 134419205, 143689495, 214793575, 219315545, 672096025, 718447475, 833399071, 1096577725, 4166995355, 20834976775]

約数ペア:

[(1, 20834976775), (5, 4166995355), (19, 1096577725), (25, 833399071), (29, 718447475), (31, 672096025), (95, 219315545), (97, 214793575), (145, 143689495), (155, 134419205), (475, 43863109), (485, 42958715), (503, 41421425), (551, 37813025), (589, 35373475), (725, 28737899), (775, 26883841), (899, 23175725), (1843, 11304925), (2425, 8591743), (2515, 8284285), (2755, 7562605), (2813, 7406675), (2945, 7074695), (3007, 6928825), (4495, 4635145), (9215, 2260985), (9557, 2180075), (12575, 1656857), (13775, 1512521), (14065, 1481335), (14587, 1428325), (14725, 1414939), (15035, 1385765), (15593, 1336175), (17081, 1219775), (22475, 927029), (46075, 452197), (47785, 436015), (48791, 427025), (53447, 389825), (57133, 364675), (70325, 296267), (72935, 285665), (75175, 277153), (77965, 267235), (85405, 243955), (87203, 238925)]