201663980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 500881920

約数和(自身を除く): 299217940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 139, 140, 172, 215, 241, 278, 301, 430, 482, 556, 602, 695, 860, 964, 973, 1204, 1205, 1390, 1505, 1687, 1946, 2410, 2780, 3010, 3374, 3892, 4820, 4865, 5977, 6020, 6748, 8435, 9730, 10363, 11954, 16870, 19460, 20726, 23908, 29885, 33499, 33740, 41452, 41839, 51815, 59770, 66998, 72541, 83678, 103630, 119540, 133996, 145082, 167356, 167495, 207260, 209195, 234493, 290164, 334990, 362705, 418390, 468986, 669980, 725410, 836780, 937972, 1172465, 1440457, 1450820, 2344930, 2880914, 4689860, 5761828, 7202285, 10083199, 14404570, 20166398, 28809140, 40332796, 50415995, 100831990, 201663980]

約数ペア:

[(1, 201663980), (2, 100831990), (4, 50415995), (5, 40332796), (7, 28809140), (10, 20166398), (14, 14404570), (20, 10083199), (28, 7202285), (35, 5761828), (43, 4689860), (70, 2880914), (86, 2344930), (139, 1450820), (140, 1440457), (172, 1172465), (215, 937972), (241, 836780), (278, 725410), (301, 669980), (430, 468986), (482, 418390), (556, 362705), (602, 334990), (695, 290164), (860, 234493), (964, 209195), (973, 207260), (1204, 167495), (1205, 167356), (1390, 145082), (1505, 133996), (1687, 119540), (1946, 103630), (2410, 83678), (2780, 72541), (3010, 66998), (3374, 59770), (3892, 51815), (4820, 41839), (4865, 41452), (5977, 33740), (6020, 33499), (6748, 29885), (8435, 23908), (9730, 20726), (10363, 19460), (11954, 16870)]