28828858100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1\times {\mathrm{947}}^1$

素因数の和:1402

約数の個数: 144

約数和(自身を含む): 72286956672

約数和(自身を除く): 43458098572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 277, 314, 350, 554, 628, 700, 785, 947, 1099, 1108, 1385, 1570, 1894, 1939, 2198, 2770, 3140, 3788, 3878, 3925, 4396, 4735, 5495, 5540, 6629, 6925, 7756, 7850, 9470, 9695, 10990, 13258, 13850, 15700, 18940, 19390, 21980, 23675, 26516, 27475, 27700, 33145, 38780, 43489, 47350, 48475, 54950, 66290, 86978, 94700, 96950, 109900, 132580, 148679, 165725, 173956, 193900, 217445, 262319, 297358, 304423, 331450, 434890, 524638, 594716, 608846, 662900, 743395, 869780, 1040753, 1049276, 1087225, 1217692, 1311595, 1486790, 1522115, 1836233, 2081506, 2174450, 2623190, 2973580, 3044230, 3672466, 3716975, 4163012, 4348900, 5203765, 5246380, 6088460, 6557975, 7344932, 7433950, 7610575, 9181165, 10407530, 13115950, 14867900, 15221150, 18362330, 20815060, 26018825, 26231900, 30442300, 36724660, 41184083, 45905825, 52037650, 82368166, 91811650, 104075300, 164736332, 183623300, 205920415, 288288581, 411840830, 576577162, 823681660, 1029602075, 1153154324, 1441442905, 2059204150, 2882885810, 4118408300, 5765771620, 7207214525, 14414429050, 28828858100]

約数ペア:

[(1, 28828858100), (2, 14414429050), (4, 7207214525), (5, 5765771620), (7, 4118408300), (10, 2882885810), (14, 2059204150), (20, 1441442905), (25, 1153154324), (28, 1029602075), (35, 823681660), (50, 576577162), (70, 411840830), (100, 288288581), (140, 205920415), (157, 183623300), (175, 164736332), (277, 104075300), (314, 91811650), (350, 82368166), (554, 52037650), (628, 45905825), (700, 41184083), (785, 36724660), (947, 30442300), (1099, 26231900), (1108, 26018825), (1385, 20815060), (1570, 18362330), (1894, 15221150), (1939, 14867900), (2198, 13115950), (2770, 10407530), (3140, 9181165), (3788, 7610575), (3878, 7433950), (3925, 7344932), (4396, 6557975), (4735, 6088460), (5495, 5246380), (5540, 5203765), (6629, 4348900), (6925, 4163012), (7756, 3716975), (7850, 3672466), (9470, 3044230), (9695, 2973580), (10990, 2623190), (13258, 2174450), (13850, 2081506), (15700, 1836233), (18940, 1522115), (19390, 1486790), (21980, 1311595), (23675, 1217692), (26516, 1087225), (27475, 1049276), (27700, 1040753), (33145, 869780), (38780, 743395), (43489, 662900), (47350, 608846), (48475, 594716), (54950, 524638), (66290, 434890), (86978, 331450), (94700, 304423), (96950, 297358), (109900, 262319), (132580, 217445), (148679, 193900), (165725, 173956)]