25491900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 86105600

約数和(自身を除く): 60613700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 61, 70, 75, 84, 100, 105, 122, 140, 150, 175, 183, 199, 210, 244, 300, 305, 350, 366, 398, 420, 427, 525, 597, 610, 700, 732, 796, 854, 915, 995, 1050, 1194, 1220, 1281, 1393, 1525, 1708, 1830, 1990, 2100, 2135, 2388, 2562, 2786, 2985, 3050, 3660, 3980, 4179, 4270, 4575, 4975, 5124, 5572, 5970, 6100, 6405, 6965, 8358, 8540, 9150, 9950, 10675, 11940, 12139, 12810, 13930, 14925, 16716, 18300, 19900, 20895, 21350, 24278, 25620, 27860, 29850, 32025, 34825, 36417, 41790, 42700, 48556, 59700, 60695, 64050, 69650, 72834, 83580, 84973, 104475, 121390, 128100, 139300, 145668, 169946, 182085, 208950, 242780, 254919, 303475, 339892, 364170, 417900, 424865, 509838, 606950, 728340, 849730, 910425, 1019676, 1213900, 1274595, 1699460, 1820850, 2124325, 2549190, 3641700, 4248650, 5098380, 6372975, 8497300, 12745950, 25491900]

約数ペア:

[(1, 25491900), (2, 12745950), (3, 8497300), (4, 6372975), (5, 5098380), (6, 4248650), (7, 3641700), (10, 2549190), (12, 2124325), (14, 1820850), (15, 1699460), (20, 1274595), (21, 1213900), (25, 1019676), (28, 910425), (30, 849730), (35, 728340), (42, 606950), (50, 509838), (60, 424865), (61, 417900), (70, 364170), (75, 339892), (84, 303475), (100, 254919), (105, 242780), (122, 208950), (140, 182085), (150, 169946), (175, 145668), (183, 139300), (199, 128100), (210, 121390), (244, 104475), (300, 84973), (305, 83580), (350, 72834), (366, 69650), (398, 64050), (420, 60695), (427, 59700), (525, 48556), (597, 42700), (610, 41790), (700, 36417), (732, 34825), (796, 32025), (854, 29850), (915, 27860), (995, 25620), (1050, 24278), (1194, 21350), (1220, 20895), (1281, 19900), (1393, 18300), (1525, 16716), (1708, 14925), (1830, 13930), (1990, 12810), (2100, 12139), (2135, 11940), (2388, 10675), (2562, 9950), (2786, 9150), (2985, 8540), (3050, 8358), (3660, 6965), (3980, 6405), (4179, 6100), (4270, 5970), (4575, 5572), (4975, 5124)]