4005200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 120

約数和(自身を含む): 11070720

約数和(自身を除く): 7065520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 31, 34, 38, 40, 50, 62, 68, 76, 80, 85, 95, 100, 124, 136, 152, 155, 170, 190, 200, 248, 272, 304, 310, 323, 340, 380, 400, 425, 475, 496, 527, 589, 620, 646, 680, 760, 775, 850, 950, 1054, 1178, 1240, 1292, 1360, 1520, 1550, 1615, 1700, 1900, 2108, 2356, 2480, 2584, 2635, 2945, 3100, 3230, 3400, 3800, 4216, 4712, 5168, 5270, 5890, 6200, 6460, 6800, 7600, 8075, 8432, 9424, 10013, 10540, 11780, 12400, 12920, 13175, 14725, 16150, 20026, 21080, 23560, 25840, 26350, 29450, 32300, 40052, 42160, 47120, 50065, 52700, 58900, 64600, 80104, 100130, 105400, 117800, 129200, 160208, 200260, 210800, 235600, 250325, 400520, 500650, 801040, 1001300, 2002600, 4005200]

約数ペア:

[(1, 4005200), (2, 2002600), (4, 1001300), (5, 801040), (8, 500650), (10, 400520), (16, 250325), (17, 235600), (19, 210800), (20, 200260), (25, 160208), (31, 129200), (34, 117800), (38, 105400), (40, 100130), (50, 80104), (62, 64600), (68, 58900), (76, 52700), (80, 50065), (85, 47120), (95, 42160), (100, 40052), (124, 32300), (136, 29450), (152, 26350), (155, 25840), (170, 23560), (190, 21080), (200, 20026), (248, 16150), (272, 14725), (304, 13175), (310, 12920), (323, 12400), (340, 11780), (380, 10540), (400, 10013), (425, 9424), (475, 8432), (496, 8075), (527, 7600), (589, 6800), (620, 6460), (646, 6200), (680, 5890), (760, 5270), (775, 5168), (850, 4712), (950, 4216), (1054, 3800), (1178, 3400), (1240, 3230), (1292, 3100), (1360, 2945), (1520, 2635), (1550, 2584), (1615, 2480), (1700, 2356), (1900, 2108)]