201981675

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 425945952

約数和(自身を除く): 223964277

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 53, 61, 75, 85, 105, 119, 147, 159, 175, 183, 245, 255, 265, 305, 357, 371, 425, 427, 525, 595, 735, 795, 833, 901, 915, 1037, 1113, 1225, 1275, 1281, 1325, 1525, 1785, 1855, 2135, 2499, 2597, 2703, 2975, 2989, 3111, 3233, 3675, 3975, 4165, 4505, 4575, 5185, 5565, 6307, 6405, 7259, 7791, 8925, 8967, 9275, 9699, 10675, 12495, 12985, 13515, 14945, 15555, 16165, 18921, 20825, 21777, 22525, 22631, 25925, 27825, 31535, 32025, 36295, 38955, 44149, 44835, 48495, 50813, 54961, 62475, 64925, 67575, 67893, 74725, 77775, 80825, 94605, 108885, 113155, 132447, 152439, 157675, 158417, 164883, 181475, 194775, 220745, 224175, 242475, 254065, 274805, 339465, 384727, 473025, 475251, 544425, 565775, 662235, 762195, 792085, 824415, 1103725, 1154181, 1270325, 1374025, 1697325, 1923635, 2376255, 2693089, 3311175, 3810975, 3960425, 4122075, 5770905, 8079267, 9618175, 11881275, 13465445, 28854525, 40396335, 67327225, 201981675]

約数ペア:

[(1, 201981675), (3, 67327225), (5, 40396335), (7, 28854525), (15, 13465445), (17, 11881275), (21, 9618175), (25, 8079267), (35, 5770905), (49, 4122075), (51, 3960425), (53, 3810975), (61, 3311175), (75, 2693089), (85, 2376255), (105, 1923635), (119, 1697325), (147, 1374025), (159, 1270325), (175, 1154181), (183, 1103725), (245, 824415), (255, 792085), (265, 762195), (305, 662235), (357, 565775), (371, 544425), (425, 475251), (427, 473025), (525, 384727), (595, 339465), (735, 274805), (795, 254065), (833, 242475), (901, 224175), (915, 220745), (1037, 194775), (1113, 181475), (1225, 164883), (1275, 158417), (1281, 157675), (1325, 152439), (1525, 132447), (1785, 113155), (1855, 108885), (2135, 94605), (2499, 80825), (2597, 77775), (2703, 74725), (2975, 67893), (2989, 67575), (3111, 64925), (3233, 62475), (3675, 54961), (3975, 50813), (4165, 48495), (4505, 44835), (4575, 44149), (5185, 38955), (5565, 36295), (6307, 32025), (6405, 31535), (7259, 27825), (7791, 25925), (8925, 22631), (8967, 22525), (9275, 21777), (9699, 20825), (10675, 18921), (12495, 16165), (12985, 15555), (13515, 14945)]